{
  "manageEntity": {
    "action": "Create",
    "entityId": "1623236369",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Coolest thing \",\"entity_id\":236984910,\"track_timestamp_s\":41}}",
    "nonce": "0x9cf2208fb0f21adcb49c81fb8f78148c75e94e46a596d84d86252bea356b113f",
    "signature": "0xed4711d067bba55c54f30f161a4e059bcba6a583a12349cfefec85f3070dc53920a9aecf333bcba93c5ecc39343e54ac98fce901f25841524797a77a23a4f0441c",
    "signer": "0xB83551fDE4C322c789781D4f10A3d0E29De29829",
    "userId": "561032968"
  }
}