{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x1434aad96d0bbf6282c96b3abc45c17676492c5be63fc17719e677eddff475a9",
    "signature": "0xa77dec76d35f64b556cba22f1f01a2df03d112f5b880cd55679aec086211cdd66ff22d4f7d71552201261649c535dc0cd0e63eebf4d46a4ad43983fbd81c0f281b",
    "signer": "0xa48DB3b4393F96ddcF404C400e8e0336767845c2",
    "userId": "360423327"
  }
}