{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfd8d930613e83102d74bac8b4246d98adba99a9ca2c8d7b688a38c2db210028f",
    "signature": "0x3557c7cae306e03360927391c2f73e51de4ea4dd80fc73f860c20b4cbcb5d6544531926c3d0b6af6d404246e75a397f8d95c192650202efbdaa9529a5163f1371b",
    "signer": "0x0a818cE8921B81C9aFBeD90b21792db13659024d",
    "userId": "976591045"
  }
}