{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb2ec1fb248ef3c28ad3742a6ac3d1e1ce1e43960e46c6ed54ffe8ce5564a707a",
    "signature": "0x527d008c3e38555d1fc5b2aa26c5eb6dafaa94b6c398ec681a295139c7b2c124563d6a30cc7e487afdc7af04e6fcd63e5f3781c77ba74f82b97d9ecc352dc64d1c",
    "signer": "0x7de4f327C738Ecb36592E6D388336bE51861B7B4",
    "userId": "914425883"
  }
}