{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57610",
    "entityType": "User",
    "nonce": "0x03226d933f9009c8141657e46fe069df18de77c0d9b9a9c5f64182757478df1c",
    "signature": "0xa1c2eadf707da6470634c375a87349758b167815442395f70c4ac2dc21794f4f4139a5309fdff4a50663b6532f349bb18b2eccd3cb04959b5cfa7559fe745c6b1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}