{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0x780271a388d1394b30f131a8ca73a8d9865631c90db2b0eba5840541e7f725f8",
    "signature": "0x92a2b09a2efab371648602bc9466bdecf6d73040d1d44fbf72c2f4473adc9809268b71480a775d7c0ae50730612a60a8b38f2337bb8ad716ce2b2bd6868743001b",
    "signer": "0x48997477d821e30d3Fa835d1Ee7809B3253Cb100",
    "userId": "75085"
  }
}