{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73150",
    "entityType": "User",
    "nonce": "0xbaafc66ebb15c81ab2ce1b30e763ca83a66a781bb7cbbd2c2b8df7e7e1171460",
    "signature": "0x2cd29d56c79541c4e19b4362917101ee93d06953d50d7807771ad76aa2ec5f0177f164e750660895a765617fdd3f7ef8cfc6a4f7f6e74b4876952a2a78f964c81b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}