{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "777",
    "entityType": "User",
    "nonce": "0xf00e25764da4441067c7d0201923d4631f577cabfcff63259fabeb3448eff07c",
    "signature": "0x865ad31f09645922660d960d63119c0e6b6b3b6d9fcea10f20bda630d13c15370ffd5c2146162db1b6328733c1a6f0f96520adcf127d80a060fa1051f2c8258c1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}