{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "864565086",
    "entityType": "User",
    "nonce": "0x13e44091f75bf10a21a0d2e5fb49e0b7923fa7c10891bc6e8ba7cfd7654ac47f",
    "signature": "0x865f9ba3fd88cc15a3a52b4f53e6cd73fb3e6c4321c906c267495e97a00a78c26a8c646c8cf8f8d689b1f875b0019cfc72dc35db8051a2bc7ac18d0656ff2cc71c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}