{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "590420239",
    "entityType": "User",
    "nonce": "0xc5d5a8dff7d8da941435730424205f1ea2545b7b41941682221f6f6f4ef4f310",
    "signature": "0x105ba622f8136da2de42811f8eb392a50b744df9c195e21665cee31154e50cb23efe35583aadd77cf4574cfe36d15f71368ebdca553979f467b4a79c4f6339581c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}