{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4198",
    "entityType": "User",
    "nonce": "0x0255f08e4a658815054f2e3d42ca93531e894b54c8a8b1811ed46d2722af42b1",
    "signature": "0x9e7c893d3b6ceea5106a8b09333567c95eff1a8a69a6e72f3e54c7b584e3251420a0d2c461d1c5e82a479df02f7cccee43446f4807827a3a57d29e7bb5179e991b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}