{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b2916e7230b39887ff14144328ea50dac3b57e44cb4b8d05a8723f56dea5b8d",
    "signature": "0x99ac61c980da11cb7e71d50294ebcc1e0b3b6c3e6576afed3a1802e4434d47b62515a44f2b975628827122038781c3350db825ddde6404ffb5f73fa8f2c52ede1c",
    "signer": "0xdCEd2038393702F47EfF3e1fAc5D5Ffb9abfE03b",
    "userId": "883672014"
  }
}