{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x52e1b8fefaaf3f7088aa07d6393884d8f857f83cf562499e5246693857057894",
    "signature": "0x17949fc267297ce90765bd19b6ee1abdfcdd4ddf106019f1c31028e7b926f1d20fb8c29d8b2ffa0e23f29009ad016865c7cce0d5085a70d97f59ccc98cda948e1c",
    "signer": "0x077148A75e2a7eFDc14dd17C4B75E20e52733a41",
    "userId": "736669284"
  }
}