{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228803",
    "entityType": "User",
    "nonce": "0x30a1bf37d7c529fc0023e20013ce2075c7b5d1b668d3736adc88ab80bb32ae5f",
    "signature": "0x16b1c315967528309b9045fcd549f86b0fc592d0213f8760255168b01ce2c5a870dbc0aa9b87a7c11b9dfe8e0753d2918b3594754b6dcce92596ec2062b5123a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}