{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x9e55129657a33a6f77a8d856c12a3c93c20cbe1a9d5200376a004abe9cef67b0",
    "signature": "0xe56e529a502a05f99bda060ebd815c15171c1f1a53ed57fe52f99b5944f2df4653aa024e9df5ee16740198765c7360773237840feb02a04058dc8c66433a2d701b",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}