{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaad658eb49a907997e5c9b36e7e45f4f72b5d2ba4ff9addee2090060fe8b21b5",
    "signature": "0x9d7c7b905e3c68b0c63a7e39f96be06f12407fc72c158419c35d5291211a9799405037e4532bf232c147408f56997665eb4ff3911203c0fbf89cbbac466d343d1c",
    "signer": "0x8E5e39284F01c312b8816552e172153Df101936C",
    "userId": "999179744"
  }
}