{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180639988",
    "entityType": "User",
    "nonce": "0xd0706985492eb7a6e6f22df26114052f8d2a6c28c80230fe8c96e3a6f6412df5",
    "signature": "0xb6a48d85dd6c5160d85e592b6851da56cdd7cdbd27ff36f26baceda8f1f0dfa16ed089509821ab8a24cfae44becbdcc730c68664627948a74119313a62c415621c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}