{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0xa01b658d3d97297d329fff4f6a7a6232c3663506afa39730d2507d776b48e8ba",
    "signature": "0x2d3a81397e59a2cd4263131d74a4d1b87c41ef344f31f8a3b3065e66f12a0da371e46c942fd728318be21ca93718ae6d1d608bfc5b7640b75950bd458c129bac1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}