{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xed40f493813e94cd46144fe8770e41711633e659542a4ca60954b86287cee584",
    "signature": "0x63877a1669366512b281630094fc89d69d57c5322ab08d9044fccbb390f8ff1f64bdcbaf3f794be816aeeb418c677184bf51aab514ef4639565088117fbc00071b",
    "signer": "0x9aB8C92886E1312cE81d6297E7Ccf4b71E8154d0",
    "userId": "787931165"
  }
}