{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbe5e7e1257a28e6e1674f9c60c6641fa42eb91fd473052fb4d44c7d414695aeb",
    "signature": "0x4b87e8ca854a42ac25d300737c204fe39740a3db13f5746dd2a25972cc784c8b6a00bbf5f4bbecb7ed08153ade3d7fc62bcf80d5e22f4755c535d3a397d16a0f1c",
    "signer": "0xa4d4b5908db0673D68dDC17aFF8080b4f9ad7068",
    "userId": "833130481"
  }
}