{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6a5942bbbfb690d43deb453bb1da8b1738b45f9a8574eb80cbcf692d15218ac0",
    "signature": "0x015894c44aa5d18bf721bed26af8df03f13edc43de6609ed2819c16f39da95502d601deeae1d73d9cd596aaf17fcbf33618d37de972929247c8a66c9dd80a2f41b",
    "signer": "0xcbEc1668C594D4917a6aF46Ef5D118D92B3b9a5f",
    "userId": "13235162"
  }
}