{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e90c1ed03a2f822fd780e0597a47e9425fbfabab2b43e18529c22f6efbd72f7",
    "signature": "0x64c75281769cee57a21bd14cc84b9313fc761493fa52c97b70ab97e410e71b9b29e5a1c15027fcf7a80040731c96e401c8607b6518d878650c1f254d49db878d1c",
    "signer": "0x6ea8694856fA45156062Ad67f1D1739b4E41A741",
    "userId": "726370089"
  }
}