{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0x4b79bb48fee92016d0beda5de0bd7c329ae2cc15d93c6393d310be6b1d8315b9",
    "signature": "0xe210965af35c8467850687b2a222514d2a095c301e69187070957eccc841927002c0238bc6573f8533e917847e743cef6d509f58b0d9d08ca7a2c80e5f20c1d91b",
    "signer": "0xF468F3BA4645DBF901c04Eb471B2eDe9A63eC5e7",
    "userId": "346369698"
  }
}