{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74222",
    "entityType": "User",
    "nonce": "0x64c7c051c551429b14a82257661d558063ac0a1c41410b425e2e33b9e2a73d4e",
    "signature": "0xddba19c154c66ba1ee1e411cbf7cd78c33fbf8573e8929c3e92da66cf644cf2d5c028ff4a03f40b0b6e8808aeb82fe888542353054ee8f001690c2a5203c4e751c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}