{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1419372",
    "entityType": "User",
    "nonce": "0x17eeb42188e6680f73dbfab20175309838d0836322d65569b83f315c89fd8215",
    "signature": "0xb04ddc754a031bc184dc4060c406a7b52889fe5ffbcd2056f7fcb16accd30a267a17a5f41ac06a27d198e085de9d1440ad71bd267d087fea4249900cb3987c531c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}