{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620449233",
    "entityType": "User",
    "nonce": "0xf878d438db0fb041a1a954bfac08262d55a98901a16e3e9852e049e294ce64fa",
    "signature": "0x0646cd8bc62675444ec87541712f7be3f509326a844eeae95442a2c2cb0ef1442c5e8b7be6a1c4041d31e654000e807d204040ee66da98ab622cc43da2aed33e1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}