{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x9a40356db8623369011f5764dc06233df8c4043849b5292e44cf1ba38877db92",
    "signature": "0x29d884b2d60890d3d2a9f59b996d1b7eb45dcfecc102a703b784954a3520bbb047a928b48b572cfe0c59afcf18d0dd9fd505cf5dbf5ca4d30249a8cd0cbfad471b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}