{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139567",
    "entityType": "User",
    "nonce": "0x1a2747c30a6d0996cf64cc57b2ac985b9e3ca93b8edd2acf8283bb201e2c556f",
    "signature": "0x90a640825e0b55a10764691db777a62527f27a78fdea8fcfd09fafdb8a9ba37b788466f2f477a279ea270b1def96fd3f3aaa9d18983fbc44844ca2335c7c0c381b",
    "signer": "0x72dD6E54C1904BDCf2b8a654d8CD35Ba1CeE11F8",
    "userId": "211770148"
  }
}