{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102810",
    "entityType": "User",
    "nonce": "0x503dcf0d6e374ae8656c08b220b7c6460440204eac7b12f6a0b5ebbd5f009c7b",
    "signature": "0xd4bd8c51c9abffc13da319d0c2307e12e98ded47f9baabf421fa61b5dd705c210ab62f4656f47348934cddab53f9247bbc884e5270078c45f011df2343d5d1e01b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}