{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "872142418",
    "entityType": "User",
    "nonce": "0x73892bb03772dd664235defcca85bdd24e3b81041361d39fa024a122b062bffd",
    "signature": "0xdb4a88aa3604e433bd4df58c8600ec723d7fa8d89b154b5dda3d0dfdd087ad1273bad1c459a8790ae3ad076e1de239e0fe4e030c8a9167eca02d93527676c1a91c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}