{
  "manageEntity": {
    "action": "Create",
    "entityId": "425270669",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Okay\",\"entity_id\":252575,\"track_timestamp_s\":74}}",
    "nonce": "0xfbc5b6d9a6b95356f467368c3c833195d233335b1f83914f094314335f15dbff",
    "signature": "0x2d0304b1ad8b8b43a53c5f19eadb74e76a985c623e9f377a8971df28079a260427b901e19e04e7cebddd6c89a35446e5f3eb9671907a9e843cd82a24428c5e221b",
    "signer": "0x7Cd44Dc53B13eEA7335A000Ce36c05cDFE34b348",
    "userId": "355113"
  }
}