{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7eef97b545bfb50c1751a5f584d07b4a7db6e54707c033d9633fafb6b0852510",
    "signature": "0x6a3d68eaa21c2b4eff137c23fb0164c26b3bff0b4450dfad9f0832fd06521d0424b329711530e050b7576c14a7661ef43c048f1419fabd6ef283113819088b5f1c",
    "signer": "0xA8801c65Fb9C8F6e0bd56DBfc22cADBf2D4aD77A",
    "userId": "865218773"
  }
}