{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0x1164f7a4d14ec5c250b83d69988860924f51dee93533129605339120dc92e6f4",
    "signature": "0x5dac6a4a5d4fb8f1e501a034058a81750fa5097790bbd8673b3ba8e81b684b902999fdf0a26c2c0578de5d6fa1b05b4df98c61fb9feeb65143fe5e531094c0ac1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}