{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225324815",
    "entityType": "User",
    "nonce": "0x898e4a0241ca276cf478930939cd48e0504af723758d4c357ac4d8f64b190745",
    "signature": "0x585fa34d3c39d8a2e55edad9b9bb3721f436766e2364c1f48f7d0437599ac8703513a89e4bea2bdaf521b01ebdd0d29745c325276fa7cae17e3c276fce45facb1b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}