{
  "manageEntity": {
    "action": "Update",
    "entityId": "476040175",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1887e5c6aedf069535c2ea8f445e320fbf8186bcad7ce0249d3e53fc55cb0b2b",
    "signature": "0xde03d4bca6af8b6643afb23cf4afcea19cef097d9fb26cedd7415e97a913f92478a50e8f9a1812b4bca27c9973030c177407c6dac37bc39edc7425642bd494b81b",
    "signer": "0xbb1F6FE414232C59A0617ec94Db46dE09a9C2a97",
    "userId": "476040175"
  }
}