{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485171412",
    "entityType": "User",
    "nonce": "0x36215d37cb994dfc41fcf0c44fffe510cace949c892bbc082cfe3474ad296777",
    "signature": "0xc250ba5bd738264ba1e021482858a813d07966614b9ec7d377c4e3a49f30e6695fb37121219cdd46509d69b9854af2d2ee201184675cd79e4e89d22e601480851c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}