{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9803",
    "entityType": "User",
    "nonce": "0x6bb5ccdbbc28c32c8d11af204f4c26545de77c6bc3525f2101b01546f0b8438a",
    "signature": "0x3cf519a8819b1433199064939a71c5dc2e9c95cabd1a8f2a7689228816a165ef2b100c0a3bbd8f34194b9e6c03f66edfa925dc8ce41534577ef95e580f25d6b51b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}