{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa164a0bdd95ca2e6b03d498c17f0b417a210708adb1011ab9ad72190a51562c8",
    "signature": "0x42448cbecadac760c1a575ee48604ee5c0133eab2aeb9d52cb3a43eb31d1f9920a6061559699612da8db8060504d38230e42922810a322a20e87899db08a5e9b1b",
    "signer": "0xd8414d8134902279e97471e479cC660e0b98a827",
    "userId": "33402495"
  }
}