{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53688",
    "entityType": "User",
    "nonce": "0x686e696befde295253eb5d129a8c660aec98a3016359e726bb4b64b1917a3d3b",
    "signature": "0x467e1d91bf5e8ae865123186339635e718f0960550b286b744a9d6c1f5a3eea83a1d8f1c91603fefd3131dd5b955af5b9d55f8edfc1cbb1c6a0710af31b76f2d1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}