{
  "manageEntity": {
    "action": "Create",
    "entityId": "271719942",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":705096688,\"entity_id\":1962715608,\"body\":\"nice\",\"comment_id\":271719942,\"mentions\":[]}}",
    "nonce": "0x9fb7e861e6f9c5a1f546f1de0481d58f3486f1660ed20b607fead11178af2bf0",
    "signature": "0x34b63e3b657adb51cb38846b5a6bc9043aeef8c2887358bbbd46dc6740200db8788553e31b54b81af5c7f50dc1d8648bd8a47792ce2bad336e0df6a7a26b4fa91b",
    "signer": "0xc7666bC2c39733fdDAC1b51E6D48C98cCadd0142",
    "userId": "705096688"
  }
}