{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51702",
    "entityType": "User",
    "nonce": "0x27ed27a13082920e30ed62ce1337fd5cd32a65c2c923e7ea81e7e3f852ac1b9a",
    "signature": "0x71725d0f109148bb1f2caf44c27bc8beb6d6b156f4575c99ad2451d4e508e2c95394dceea828ac7f315441a73888cde13589b28982c9696d6f8ea5110b18064d1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}