{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "892670088",
    "entityType": "User",
    "nonce": "0x1ed85edf8aed6ec85ac6cfd0b94cba992c60c3b740f7e530310371d4d73e9e6c",
    "signature": "0xd08a9178f71624aa253ac8769301408575185af95abb19aa4de5258b137980426d2b9f0cd57f5cc00566322297d89133a2560fcc31083e8f25052cbbe455c5c61c",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}