{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280440301",
    "entityType": "User",
    "nonce": "0x8d3a244f7522a7df87bcda858c5cd4885235511a1c37433b677e9821fbe08ebe",
    "signature": "0x026cf45b47a642185960e2d9a620508ca354a03ed727cef007eba042191d80d21f71cfbac3a45946b53b92b4042adf3078e5f608fa4a0973be8c410ca0fd05451c",
    "signer": "0xf8ABf39f2F6744d86520F59beE235a7E0D589148",
    "userId": "432118704"
  }
}