{
  "manageEntity": {
    "action": "Update",
    "entityId": "279583906",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieranhwln3ytzszxstf4dzr3whxpoe4j7ooyax5a2bsut6rb7gvxiifq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1127319445}]}}}",
    "nonce": "0xf44d80b5ded923f8b861ed3da4c4b8f4636b6e4ccb81cf01ec585346ab88c0de",
    "signature": "0x3e4a809f2d6b05ad778016cf48beefcb2c2aa814a080a9cf7693d6453e763a042de2faca566ffd6656ca3a3ff3cec4d846f8a1ff068291269ee01863334221051c",
    "signer": "0x832d36795a8f06654eC0F76AcEE0dfBa112223Ed",
    "userId": "279583906"
  }
}