{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0x3a9ccb34bf510009a4d1090351cdae7f128c3532696966c63063e59f282b1ff8",
    "signature": "0xe6c31ca5c1d7d93ba46ea764ce2fd52c7a64a893010b24f63c3097eb7365f616776e4ca92240761dcdedc49dc2c1124844eb061317013e108a9e50586bd28ad21b",
    "signer": "0xaba173EcB673EC21a991fE5dDB21ea87D150aE80",
    "userId": "764"
  }
}