{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55585",
    "entityType": "User",
    "nonce": "0x6a8d22a67a25db75d7c213f1e33fff97b9fecddb09dd5e2e1d205550ff91d11f",
    "signature": "0x737951c04caca60120e12a1e4cf65c382f50e74b6d490cebc80fc8b2b34efb2168e8ec4c3990a34af076b8aea17050a5fc2fe5784a5348bb9bb5948a22d5bfff1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}