{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e4dda58cdd25404d107c206077b4d704e837aa90cde82f718068c9b1abc766d",
    "signature": "0xf36e54b6410e8b787656a19115f940fedf3a34126f4a7e8388109f545075ae487465d62e8aacf037d56bc3eb2c312e6f098cd4abe38c60215916542549f4cb071b",
    "signer": "0xd163667714DD20a7de7d09005b0A820B1b11aaa2",
    "userId": "841706200"
  }
}