{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348251",
    "entityType": "User",
    "nonce": "0x406d6197b6f7f0dc0bd6be2734136ede8df8cbc583d74e451f976e0a3745bba6",
    "signature": "0xfe89ca2bbcdf230485fbe8715d641b1727e64d9b23f8543cce64328d3bd47c51714315a8dff6d1531404d97e4f7e52da411423ac232a5d6645482e87955f022d1c",
    "signer": "0x0CD9dcF9fcCa28bC63B06fF92A4214f7Ed04b0aa",
    "userId": "733078358"
  }
}