{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943474958",
    "entityType": "User",
    "nonce": "0x9ac464b621a4badd3c997722d86e349e40d3692664e44ee6576279c328b6e745",
    "signature": "0xd0e84c19ce53b41d26c777d46a7f42aa126253c758c914682718aa6824382ae358198445524ecedd1d9b4dd0c3fa97d564c21b53cad9b7444bb87795500b5c651c",
    "signer": "0x91A0243d0c4b44cB682cB60883cB72C26a8Eda55",
    "userId": "298293683"
  }
}