{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5339",
    "entityType": "User",
    "nonce": "0x0f454e3f27d00a64d85720aa30f7538a020a488d194314782e653b40e84d3b3c",
    "signature": "0xf884f9c319fc598e583648e73cde08dec893db7ba0c141ac161f658ddbbf2e6f2b6c3c5fad59666a63db5673a8249bca5d98f1728925e221383086138fec66851c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}