{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xa26732e970b2c6c077f80569abbefffda5f9133632cbd2bcb5bf72cb791dc065",
    "signature": "0xfc52c885f7126d187ea183a3574ebe3f32e3918bfab52d3fd0f1f14c6f58a2b76d0397c302166cfe29e13ec09b7a866277f3a54b867f3200dafb0e0d8da235981b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}