{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1979831",
    "entityType": "User",
    "nonce": "0x261dcb29a95a86c52705e0c5ff6368f022b37110d9b7f783565355a4968597d9",
    "signature": "0xad19a746adf9026d88372a3a019029bc7e764c2a81564cceb84f060fdc055e105dcb3c209ea9db9752f61de4a4e21a53b91f720d3aef08ddec4e0d543152c3691c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}