{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "753611",
    "entityType": "User",
    "nonce": "0x633d22c5d3bad28cfdc22d2787c96983dd9909418678f962da2acd079dcce8ef",
    "signature": "0x46ac0fbf9f8c414488b5167ab582d94548eafeb03bfe222b4be0cf52e0ce74c42ab38346bb0d06a773aeb7082407f90d1e1200a7f564ef968610293bab0cc6d81c",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}