{
  "manageEntity": {
    "action": "Update",
    "entityId": "36669256",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3d73c044ccaff41132c475ac149ac3cd587f670ad686b4cfd43959df03f2de4f",
    "signature": "0x54ed4a77403246ed9aa13f0eecf9eee1a58af0e7a5e8689bba6a2300c39997681ba6bc806fd2f81e8417c76bd8b0b7e2ecffcace7863bd8bfc7852a0c6c4fe681b",
    "signer": "0xCF37605ee4b144e8878B9A159031027881CBa2B4",
    "userId": "36669256"
  }
}