{
  "manageEntity": {
    "action": "Create",
    "entityId": "1919721320",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"loveee\",\"entity_id\":383746708}}",
    "nonce": "0x4d70d82e168255af2bbbf7da39ee256f04881d8d55a0f62d37ba4719b5d8ad76",
    "signature": "0x468e959bd14a0d6afa9c2d26a8ece08611764089790fd3a38d1f7073f2cfdc4f4e406bb9988876a1c2998fb8a149f6a5da29268289537d3f90ceb21838f2bcb81c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}