{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60c0ea273847f685bf33ec0ea6309d1aab4f6b6aee718e31ccc3cfff75d9dac0",
    "signature": "0x25047890896cc3ef2ca279e4666982c27752dfadf4e8395512536dacb34e8df55a849c81d90dbb0bc43ab454fd19794348b9eab600895ae86b42178ca3ff6ece1c",
    "signer": "0x62324Eb72309F5d66CBd77B06173F034B71d7b85",
    "userId": "23238037"
  }
}