{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "413598291",
    "entityType": "User",
    "nonce": "0xe9c4e47ce533e16c0386c22028675e32c00025a272149d25d2999f0f379d9e60",
    "signature": "0x46800533eb2b86539273599c9d87452c0afc4f0c6fb2fe766d570eca4859c01d0e58b3adc1475f546ede6cdeebd58691a330cc146bcd762a4217add30f5cf44f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}