{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180294",
    "entityType": "User",
    "nonce": "0x630e4ac73ab844acae5680f94d1c035f0ddf0b4621f01435d25b0631f8836e35",
    "signature": "0xe63404356d0c8bdabd1329a9352b6b865cfd052ebba2661aa24ba41e8dfe09e36fd3e49a66af8ef03458f1ea1f946de324cf0a726f3b0a3c215a845262a6f1c81c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}