{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152579",
    "entityType": "User",
    "nonce": "0xbffa19bc8a8761e99c7dc95ca3bcd3f1c14e1ff2194f05d245dae51e0d727f9c",
    "signature": "0x8514ce41e67dd174774484c2c082d5a5de24016e598767ac30e4044e35000da21e375ae5376bdb122ca059b6e9cb7d57a283077d80ae9196b78d6a64cf2a77031b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}