{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "737872723",
    "entityType": "User",
    "nonce": "0x4818aec90884e9e1277b902e16b65855483e0ff0ab594f92b2429a9d0e824bdd",
    "signature": "0x6de2c91158fdad90c72f26899db36d2c0302776183be2a62f60bc76889c7de902f00cf402f6e125169f5c9af4956baaded57f4c1c165f1c6569b9f68d70825d71b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}