{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1685453",
    "entityType": "User",
    "nonce": "0xdfa44aa294a2f625430c5c68119a84b06325399d0e64e89664e895fe93a59846",
    "signature": "0x413a96b8b4e4ad70953c69bc2bbca2be6c8bf51a22cfdb44064f500dc73d8b8c78508d64ff837ab19d28c7cb69cf4b39cc2dcf3f0a8baae879c9ea0cb4dd6ee91b",
    "signer": "0xa9A8559aCdeae56016E2c1656A641b774DEE9c20",
    "userId": "48923931"
  }
}