{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5194",
    "entityType": "User",
    "nonce": "0xbe6f1c08e03705354278a9028f45593da5ea5691e73fff41611e83646f7a7dfc",
    "signature": "0x45b0d7e55c14212836c1948c73349dd51ce289034866c4ea56fa7fdc520758b0373597df0697fcbb4a8e2fc2b0eea7efc02ab1a41bb0fe8b2f19653a387ea7b01c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}