{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "873182089",
    "entityType": "User",
    "nonce": "0xcb7e534631d6f906c9e073202a7545ff0249d45a8e80f6572cdba82d9a0889a1",
    "signature": "0xb669cfdd7db852f9c65830c60609722684adfe691546ebefa10b1daa62566de76d69492d0966a931beeb016ac5822eb4cb611a8c2753b12688728970049bee841c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}