{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63644",
    "entityType": "User",
    "nonce": "0x660749f9a0a2b31cb8d5cfeed05e298875cf5c8fcb4f1d0f5d50ea849688b999",
    "signature": "0x724d4aa0f414d7fd138028861f94315d858cf8e0fb81cc52af267a92c99b324b1f4d160faf0cb2fec00a4ab1c7fabc5a802a5832eaea8a7c2254f8088696f6f51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}