{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x21fd8ab1fd428148e15d4f0d345d230aa0650ccae300b4904e6dac629d97a7a9",
    "signature": "0x9332405567ee5eaba414e72672fc12893121fae67bf7a8b8f353ae3e7df896712ba5de8b99d64cae87b133046ee26abfe5a24cefd73551856f4eb7c2235f0eca1b",
    "signer": "0x8838cB510ADd37b71093e4FD76B81bdd280860f8",
    "userId": "674339889"
  }
}