{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x121ab34e35550271bfe29d8097863b0611976e29c978e6a8776dfc55eaf90927",
    "signature": "0x3a32a153d67716f97c3b0799e037aaea297e3ce01c4fc4be439704cd317815081a0d142fde46d75f6bcfb039ebc7b6486e7b51b3ead07ac1a0bb789e7da10b0b1c",
    "signer": "0xAB601814a3b7DB1149bE0b45154295028AB51f97",
    "userId": "613793033"
  }
}