{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "368774",
    "entityType": "User",
    "nonce": "0x47cc4ea4b39510c5a6295e7c47e2c7cbe5c03cf3cbb64b266cf9bfec0d94a52c",
    "signature": "0x240769eb1376c761f85a12c2a0ba3e9a823e6068b08a8ec334f544ff5eea65df0865ed17aaa9ba0f5bbdb6329352bae8d69db2212b8256ce0eed8aa0fe1cee511b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}