{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0x620e275ad9e240bf1006e47a132840ba2c25c3741d1cb0bea51fc3f998c341bc",
    "signature": "0x2ca03cf79321b2b252742b2b14146741ffae94774e25284dc5f99c926a2e00a8284b0f6002adf8922f306047f3ce90b920a95aae88bdc50afc0a49e7a6d569951c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}