{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x7af8cdee01c2b8dbb2cfd5b5b73007df7e7148beb02e0dcdb1334cfb7f590b6d",
    "signature": "0x0b0095fada27fa33c05126f1b7ed0e328a14d5616e928b7ccbd1189a208d24aa62cab3c3851dcf5af72b6cfda1eceae7ac6747ec347412f30ac07191b5f0ee241c",
    "signer": "0x45C3C3C84b1FBC3f9ecD57BB3e43dE4044d3Ea3E",
    "userId": "975596375"
  }
}