{
  "manageEntity": {
    "action": "Update",
    "entityId": "313005009",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x42c459a33be94bde7fde8d04a8dc98d8910bfadfe5b89bb991b417114906266e",
    "signature": "0xcbcc29d54af7df8ed538d82a2a13deb91063d807cd5fbba95b2b4f319728930721d936e67845abf73e5de6a17e8772a80343ffc0dabb8182bd1c5ad211199eaa1c",
    "signer": "0x0d70327a97F1354Dc245BcB2B41B5D32F78E24c2",
    "userId": "313005009"
  }
}