{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358944",
    "entityType": "User",
    "nonce": "0xe125920d355a9776ccb39dacbc56cfa319c8289cba8b8aa2f1c51b56de699eb3",
    "signature": "0x657ad16e8a29108774f2f503dbb32a0e3b05e877408fa3081689363ba5c5f37d1a838f1e3b42eab8927ded5bfe8f5037fa7d0778615bde76960b8cffdc3183121b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}