{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5ec7002e1c230041c0dfadb4e56d594def4a33ac8e0c9b5f0a1ece63a40cc2d5",
    "signature": "0x1418e12b0bb69af90ac884e35b66f09e15f10be1c63d3a202e9202b0bfc59346634816ed4c4526a014a005406dc07c0691cdcfadd2333183b120f5fad70fb0011b",
    "signer": "0x054F101B61bB7E27B9fd2e5eE752FaD6b06B8982",
    "userId": "410497945"
  }
}