{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x183bdf7f7f64062413a163d68f50588fde05b670d9651d385fa75ed74a114863",
    "signature": "0xed3296d7bfee52452a9891dfae026bf22fb9f99586907c22e45d980978e1535843b499fb4225629ac4c760442647b9e7ae5cbe8914169e3e48c80453557bd6281c",
    "signer": "0x25777eae7A2545DeD020199D09712e9b093e1Af5",
    "userId": "173423183"
  }
}