{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54099",
    "entityType": "User",
    "nonce": "0x711e86016734154449a7a55f8ab8d833ee60d1334512a495d15ca83174d326fc",
    "signature": "0x65f8167500253c483c28971a2707f00668a25048d316313af164ca3c2b539eb73d7bdc1844cf8b8e891e3d5e7dfa635f5d49f07ec9cd8a937102a669f9ce09ca1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}