{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61913",
    "entityType": "User",
    "nonce": "0x404db0f3784e5b016f60f2b8525b4f640ef75e8b398705ffe6328d88de68f527",
    "signature": "0x85e24ab6a8f687039f8900156d950b3541c7e5689badd588a427bfaa856b31507e16826adb1539638cda2803c85cddb9ff34ba8ab2d01a8b7ef8a11b4e2285911b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}