{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540503651",
    "entityType": "User",
    "nonce": "0x92875978b37df62b399c5275d3913db8c70501d0c02a01f16889d4ff6c028420",
    "signature": "0xf85dd02e02115e50d66eca2f44b0811ab0fcdcb126824f718eaed9f92b95662f6fe2eb4d50157820bf773898de3f5387f443e3f2a16f109bcfe588a3b2be4e5a1c",
    "signer": "0xf0cFA206b9d4522724e13fb1B9Aa62e31122e1fc",
    "userId": "222289659"
  }
}