{
  "manageEntity": {
    "action": "Update",
    "entityId": "672019090",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa928a3150727b235a3fb2d62cb9de78d9c502dff356d22590ae6ebd6918e2351",
    "signature": "0x9333ddc19916091f98c1aeed2a772eb60a63e8c6024eaf6458d469a9d3793798188fa4a70935178990094ed8ce3cf91214a6bdb3ad0995cb283e826389517a301c",
    "signer": "0xAD915A386ad837fE8aE98a5c251EC61d50dc8245",
    "userId": "672019090"
  }
}