{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395416959",
    "entityType": "User",
    "nonce": "0xb1c0e5553adabc15b220aceacbfe560d91b51f1576f4f42d45757b8a47837777",
    "signature": "0x748ae972cdaba8515f1e30848e4e15241a6053c8cddfe180ee62be185c18458d2ed137f47cda4ec9ef5430219dd7e3e92aff82b93f68ee6179dd90b8003ec7b21c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}