{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8194728",
    "entityType": "User",
    "nonce": "0x3fba7d812997531f06addce0bd0b271ecc2b5eb6f162af81a01724ebf537f8c9",
    "signature": "0x7d32833f2bd8dff9c4b019f8a63abce915145b7fa9f9a756b9bc8dba762c55be67959246c0f60112b23b8cc4da78655f738f9fd5665dc9415c9b443f244745ab1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}