{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139859",
    "entityType": "User",
    "nonce": "0xca33043668983c766eba7e50aaddd0301b1219f361845420cfcfcff702ee0469",
    "signature": "0xe97787a2d572854ffb7c371f3d2d6b9d98bcc7204b8cae30a34232d4a2275b501d47d53617dd5815687b86cf1dca7a2797220dc8bcff8ddfed8e71df26bd0e591c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}