{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107573",
    "entityType": "User",
    "nonce": "0xc789c8c54b74e7ebeba84edfdc3bbd530dfc0dcbbbf1d2443f3a9a3359f3f1cd",
    "signature": "0x0d3ed2f25fbc3f57f78c155a741ab58125abc20ae4eed6312bfabd1bb6b310b55fffdbaf3f04dec67fa63a82c02f0404010670cab11ae39d46c9b897cef9ab2b1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}