{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270549",
    "entityType": "User",
    "nonce": "0xaf30f40a38d12caa0b629fca63eb68db0bb4860565085cd9e013e48269284de5",
    "signature": "0xb1530b2d5dac3b454c57b30a79695e6b012202b97ce3549206ab515b3b8b198d5b7d04865b15d34b890a39ee7f09c1fc4ea039c5fb356ec5def459bf22a90dde1b",
    "signer": "0x5aABF607817cf3cD4d866cc396132C82164f784F",
    "userId": "464183022"
  }
}