{
  "manageEntity": {
    "action": "Update",
    "entityId": "259513372",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x398efc69c92c22b66d5d76025e06a35a0ef643b6d129625bb109d8853dc5fac2",
    "signature": "0x3bec445e66134e02bf04282c95fe1f5c182af846288a6b5c200d605246025664286add5568bc81c1408ad20fca5a3d9b759f40fc2174fe01564e806121fb8a651c",
    "signer": "0x7deF33625A39F0c82e548F69aa14Db905C001F9B",
    "userId": "259513372"
  }
}