{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140",
    "entityType": "User",
    "nonce": "0xff5f94e1143dc88c726a9e2e2408998329555d3752720e99a195d9aebf00eb8e",
    "signature": "0x7d584d011879327fdb72d66ed24c850b137b4176ea80d64331fe9492eb58dcb34db4e2be37879c4037d8d69439ec5fa8b1521fd4af332202640402cbbae8d6951c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}