{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x694f901dd0f4b1639a24da4052fce1dcf62851f3426c68c0916be3d05b1c9e38",
    "signature": "0x051a08d61c1fd78d2e2fb6abc018ae17d28507ccf1739c0b423eeb52f85a6e583b4d9a51b70c9f41579ac669970ab6639f9f0ddf0e375f45ed430575b19d0d121b",
    "signer": "0x73da081d9f0Bb0d458Eb82ebbE617cebda5a786c",
    "userId": "143034267"
  }
}