{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdaa7f281eefc1999cb7984271320edaf6722efb02fa52879aab4d32ac0fbbfba",
    "signature": "0x7fe3942eafb3ab92e502fb3a7b44e23d8bab42ba764042e5b0496cde5c76c6ee3adc8b70e06d2c9b600ffb4ddafd3dc7dd761169ca0d90da289daf99db7b9e971b",
    "signer": "0x2Db51188e987b8B4F8B8E853987b9950590AcEEb",
    "userId": "469969290"
  }
}