{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "774076",
    "entityType": "User",
    "nonce": "0x5bb512afbcfc7522a7a2ddd91532fb43e6589ba5bfc90ec0631a0e94d4c62516",
    "signature": "0x435a02c5e8826765852609599b03ea1ecbd7ae39aa081175b648dd73f74ab8dc53a23907dffb9dd4949a35cef940290320f127177e9ad42051564be01f70bc1c1b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}