{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x6f102c654315d2d34651fbcddebcff6f20e21655a6d49240967b079372dd6b20",
    "signature": "0x45a48b7f481ea5bbe52c0b9e28050732b3f9df23af24e53478eff617a50af1f600d3a42d467aedf757136ecfcc006fe676fd617cc6722c6a6308e0a1aa08deed1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}