{
  "manageEntity": {
    "action": "Create",
    "entityId": "1414205016",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"sick!\",\"entity_id\":347975966,\"track_timestamp_s\":133}}",
    "nonce": "0xcebd216cf24148353a89fe0835794756c21a40d4b5cf8fc9639caddb7adbaa23",
    "signature": "0xa069dde57052bce405b8b2a015c355cd89f559125456e86c84db98f8936f0e9f3e5753aefdbd47e514b9b5aa509c25dac1d958fb8ef54211f4b55e769fdc4ac81b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}