{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142368798",
    "entityType": "User",
    "nonce": "0x6946cd4b75a4d0f867217658edc47efdf62de4e3d9ff0a80cda51e4edc6910c3",
    "signature": "0x3f0442c65264f302f08f10ec3c5414382b225687c6cf633cf0cb4d1f34e4b84955dec84463845cbde4a861222a8b8623bc337ae0a966047d4271ca8ebf0d89841c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}