{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387832",
    "entityType": "User",
    "nonce": "0xf502aaa29c7724e04a9bbb2fa21e4f57dfec573c2b46c2108aa335178723ce90",
    "signature": "0xc65c49fd7b7c901dd212679d0fc9c45d9cac1bd7c75e0778a13d11474cb53bd262a484468080f886ea8fdb9de6f844330a99134c1608ac30ef62a102b12bece31c",
    "signer": "0x584E14C286Fbe3d7d725fEDb4a87e9336366de1B",
    "userId": "505088404"
  }
}