{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0xc19dcbfc14f194ccd299285ad81a777d33db6926a0c2e1653bf866f7ce137076",
    "signature": "0xb82a836200b8fe2da1d25de00726321958c5ac9536296616b39b1070e6859afe711a27f6e3635ace6c5b088b84b4a68833a7e2f58e6ad5e7a7ccc5b8f775745b1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}