{
  "manageEntity": {
    "action": "Update",
    "entityId": "307803001",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f412c733e8e64e99bb75619410d77f2a9c83302ec8fd56529a12ca6bdb2fc22",
    "signature": "0x507a721a02da5cb0ff773afee1d03f0634b99f777f1b90d51e40501d0e0fc678289198c4ae42617cebfae7a1725f4fa2a0a9d0308fb922bc224937fb86ea449c1b",
    "signer": "0xdA9FAC13f52c17C45A4c6Bd56012a6bffe40a362",
    "userId": "307803001"
  }
}