{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2214",
    "entityType": "User",
    "nonce": "0x56966a6311bcf0ddc077d639d2315837161cb83e914ab7e616404dbf5c77240e",
    "signature": "0x6467167678bc8617b3d0d7e753796b94fc4c75f4e4d87ed5b326f3b7133663f402687ffa102293aae6e1c701ae88794f9031a52706ec4e1b933c2b918992a86f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}