{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xcb544248e273f4d700f6edacfd8bfab7f5ac0a847290a58b123510d25caf6bf8",
    "signature": "0x1afffaf75ded6977df1be6695853157166ae4e7d85fdfbe64d09cc97d7819ae248bbdcdb5df6b4684abe0a4baba1b3197ca498f18a0d1afdef5b501b753da6231c",
    "signer": "0xd367754F1CE503c2D28B6793582BC23fD71eE997",
    "userId": "420647095"
  }
}