{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x80439b9f60aa0fc0dd308b16b95530f77a27898a739b78c32c2662424c85b20f",
    "signature": "0x5f228fb0c3bdb09d2aac1130f11d1cddb294fdcbbe1f549ad6b1c4427c2a45e25f1dfc797b7475e1c65845b6e3b9251d4e4743f8b245cac67c07202d91a68fd11b",
    "signer": "0x05D3717De510a9be83D168A5931BD934Ba189d4c",
    "userId": "20274838"
  }
}