{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0xd377ecd472ed163632a57955914e80a80d67bfac1a068e847643b2584a6489ad",
    "signature": "0x7130d2e1ff18651c414ef655ee3513ea5ea2b8b1f60dc7fee8528b4cf2b660cf7b10953db17f7d81f8a73bc5556ab1eb39bc654dc3b4b2c157fceeef641d56fe1b",
    "signer": "0xF300c20BDBB459E009c4E55c08CFd33E12f8B0Cb",
    "userId": "782218508"
  }
}