{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x0053236860477b5778451ebfe7626e30effbfe285324343bbe385560ff23381c",
    "signature": "0x944a4d6d3b71e0a5e904b86527a40423734bb7aef93ba75ca2ca2a1e092f5d114c0d6eddcecc47ac686ecf6819dc8021e34b255f753fab3cdfdb8ccd59a1d5c91c",
    "signer": "0x7495ffcEA4B233ca42224EDe45fA94bc245920C2",
    "userId": "313045689"
  }
}