{
  "manageEntity": {
    "action": "Create",
    "entityId": "2130440850",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"really cool!\",\"entity_id\":840950177}}",
    "nonce": "0x6dfeed5fcd14676ca4ae10b59d6ad5436aff684dd37d46c15e87bc6e0094d64f",
    "signature": "0xf93982d4fbe0802549c9e33b25836ca528ed883b658f36e7f0b0b6df70bb6ee502756ae0998e24c240fe5443ead3568d9c26219130cf2bc26d8f2990256608731c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}