{
  "manageEntity": {
    "action": "Update",
    "entityId": "392272509",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd634f68289ff7596a5bb0bd3aed7ce9ccb25b87daa6262c65d252285b1ffe1c2",
    "signature": "0xe92a1b0560d58460e504a3d0ddbf82a0cb286076183ec40d2a0dab013d583c9b6d4b34292ff1611bb5a4365c18c504aa99984d4f8373996ef54f6b62d2a43ddb1c",
    "signer": "0x98578C27EC039C3140f5AbDed2183aAAE1dB4d1d",
    "userId": "392272509"
  }
}