{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104699486",
    "entityType": "User",
    "nonce": "0x8586ffce98960ba5e86d9b338a89790bb7b779786038afd9fc503829dc28e4a2",
    "signature": "0x7fba4b8cc5038529cb80d63e34d63f6307ba1fd8f17ee10a0baa52bdfff163a37061bbabc647b2a8b99878784f470c7711b04d8de4b1156dbc22ded550e600431b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}