{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324542",
    "entityType": "User",
    "nonce": "0x62e6de1bdfa750b6daf7914fc239b0c4fa1fda48113ded8a07c690070b37806b",
    "signature": "0x81bf928756659feaee7df1494dccde80bcddd9a4024b694f1acb0c918ce5230724453e84c21879a992af2ea7a5c22bf7d8b808d104a51156f8e278aa734676fe1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}