{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9caf0f66cc5578a7afbe2c77b170320cae6447988656341eec5dada157ea9ba4",
    "signature": "0xc22269af5e9ae440e09e0cf95d060bdd67907e81a6ed4cd10589f424131180852228db361d1b20949cc46e783142a3231bf75f9b4c496847ec129e15f53b54461b",
    "signer": "0xa741B0106346033C4A499068360937e06ee35E62",
    "userId": "780083254"
  }
}