{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1873428",
    "entityType": "User",
    "nonce": "0x87fb1306af6cf3b84f8a449c012ac30bae4706fc4429dc3ac9266227507bc100",
    "signature": "0xad757099fdea23067961822bf33de3fb8cda690f8701ebecf46039644a5533fd61e859ab95c6630862ea85af3e1bc4557ba05d93263d83a6047d3272dd38fd101c",
    "signer": "0xA7Ab492c30b0A0719cbb2098007e29783E01E797",
    "userId": "930016036"
  }
}