{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "535575",
    "entityType": "User",
    "nonce": "0x2979bc64a5f1f00f4a9a59d2f1b2866335ab43668165690eaaa1e001d42a3f32",
    "signature": "0xdf93ef735665e93408e31ef6f04b96425eb2af39af5abd59f9a365e2a2253f8011330c34b73198540020933278de55168346a0a3aef4247d4b1f2528cb59c2cb1c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}