{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0x9c07ea3b0683e79da66039edfc189d2f929c23bc4bfd85930699519e19068116",
    "signature": "0x51ecf2eef3ff3999df34a604235e2fb3e0c17d811cb6303271c3b1dbae4ab5bd5bf2e48b54be7f26c40613c25732d874811de3beabbd2936ade00f89e461d10f1b",
    "signer": "0xd367754F1CE503c2D28B6793582BC23fD71eE997",
    "userId": "420647095"
  }
}