{
  "manageEntity": {
    "action": "Update",
    "entityId": "543327273",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd03f2161f5de7ab5e6089adbfc528cfdfb5dd4c02342db4a53b19a410fa14053",
    "signature": "0x94f5ecc4d2d5e7248e3096c342d890cb849a0a991a0e017339735c530cdd9d87689a973e3ad58d89e7d6949d6db0e146aad783b0def66c7849735704582f50e51b",
    "signer": "0x9c320C2f7A61EF6f1f62d2eB1a8D2c30dBc29c24",
    "userId": "543327273"
  }
}