{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81539",
    "entityType": "User",
    "nonce": "0xe8f51e9646ac42da70d320334412900420a8deb43dadd993a6a89b4305f24705",
    "signature": "0xd9b37ff4ccb0feac92ee584a4b74b5939fb12e132581db73c0a265bd96e1c3391a875a83f9a6d62d912f42433b69dc53b7bcef346abc63ec5d492eedfe21c4da1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}