{
  "manageEntity": {
    "action": "Update",
    "entityId": "418312750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x73c8198bced82e9cf75e34a6920f79323035b73519bf8210234d2f0d251cf821",
    "signature": "0xac10cd466fb6b8d8e9cc60ba0eb4ba44d02750feab332403e34bd880809f53397750b6f092a8a31123edb799f47c4d3b66097ee5a37a255a23e32bc61219c38b1c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}