{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1463955",
    "entityType": "User",
    "nonce": "0x75554ef9d3e328491418f3651e50f9414804cf6917aeb10610f022a82e2bfd9a",
    "signature": "0x9814e7ae758f7c29790b662a011cb7bee79176315f117c452a997df95b5421e32436e2e652733ac57c7a7293edc4268e2cb5c0ba86f1f5290a948aa2c90a815d1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}