{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1441",
    "entityType": "User",
    "nonce": "0xe4922b153f621943c8e7b9509d783a4e310cf8478bdacecdcc88223158f54e86",
    "signature": "0x1d5cdb02e093c0b7799cd40fb1223895872b6041cd29e53cc0f4f348d386e8ef4b222c5f9d5fa8ebdfd9d8315c8b7ab7f15184742e9c86ba1570a9b8a28896ff1b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}