{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298105",
    "entityType": "User",
    "nonce": "0xd618a20bca05812661099c55df3b1deacb944c55625e453db27cecc42cb58cb7",
    "signature": "0x750f1afdf539ecfd414d6f729eac7bc398ec9c61ba4cc569b0f570ddf2f7a5d00c6c103c47eced34033335fc1b69040145a544820a82c2486b37076e5ca8d1201b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}