{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x70874aa7c9dd1d2d0d7512b10780186befcc7ecdd0a1d81fade6b843daf364e2",
    "signature": "0x9f36e185816cc5c9e51df5aaa53b6974164fc5d8b814ce3983ed8a4c84ab2a293af9c9fd72f52a04816fcb2dca997aa6b9748464b858c0f796a5f97fa0702e621b",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}