{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2a6b9275777444098bdf516d1a9e74f06768d54600776fbc7c9c15991e13bf99",
    "signature": "0xd267d8fab1bbf7da031eb8c98a4b853ee35a249cafc3988fb0962af3f0fa155925d858ef8cbf04b9b8022aba3c32da3821c13fb4e67dfd2553c70e2157d0ba7e1b",
    "signer": "0x40B1E2e8DD54db8aAFaacf81A7ae13394E412374",
    "userId": "12593245"
  }
}