{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40050",
    "entityType": "User",
    "nonce": "0xef1e43d000130f238014f90dffdc1529234d85f68d5a0241b7899c6549ee03cc",
    "signature": "0xdefc1eb7b9dbac9e5d02ee69dfcccd23a7de731fc880fc2c7352ac3d657b8c7a2596daad90406b769a54e7d80da5189175dcb7f8b9c4db30cb9954bd345472251c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}