{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21894",
    "entityType": "User",
    "nonce": "0x501face5411543a2f21533235f784b8d6c5ee56bc8b75e88add8a6d73fa87deb",
    "signature": "0x1d32f9f2e388cad158fff99962ef245e811e97592f8c70c6de9df17ea5c0ec4f5d97611c60c55bca841941cdfbea4f17f278fdc3730a0d316f9c89e0021e7de91c",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}