{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8cdd7352c5efd5ec1bc7f80aa6cc0f0fc5631c20094d5481f833f717e7fd36cf",
    "signature": "0xbe2ae1c183d94eac0302e35cb977821a6f0cd904d7472f7371c1a30148bfffee223415a18d943551d69f9f16e429f1c932d2a0a014faffba4b2ee540e660c4821b",
    "signer": "0x2C99868e524d74F97c202eE196a0287bd64f01a8",
    "userId": "108585310"
  }
}