{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72752",
    "entityType": "User",
    "nonce": "0xec9b856d16319358ff4b6f4bfa453b5b8c12e71b608967ba1871e0ae40278f8c",
    "signature": "0x6df2c45308cb07e8af9b60d2374515133317f87ef12b3805146f54e972e2e7b8398301492331fd02a39e22dff6563e623006b0ea6c9d8469a95ecda8e3318a261b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}