{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1307ab197917fd5ec8e186276245d77f96aa52e53f02e21baf406b7aa34bebdf",
    "signature": "0xe6a2d746326a3716cbc6077c8cf112f0bc79a63c74e68d76ac12edbe602f0fea2eeecf64e20e2554cd5f122509381d4bc8b70edd02fc2339ff6c695d8ccb9f161b",
    "signer": "0xB89F4951C5e3a32BD2F716945bD2DE0384cfadd1",
    "userId": "659865636"
  }
}