{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18122",
    "entityType": "User",
    "nonce": "0x36846942d148aa1115244fdbba22b9a9548a15b3a3e3d18c9da9d1580b13b2b9",
    "signature": "0xa4226ef6f1ec9b0b69134122267aa554f7b12d53890f3bffd42ba85908fda33f0cf3ee525bf8fa35ab82ede0150fafcd738a924a2318d4e42abca0c1d482566d1b",
    "signer": "0xCd69C2Cb50a21531a08Db7A8333c51532ea010f0",
    "userId": "837274016"
  }
}