{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153564",
    "entityType": "User",
    "nonce": "0x54e023a2495c81b3822ae4f2a1f867b542aed9d35a56a933bb98285dc846891f",
    "signature": "0x67016b652c1299adbc33d0a01acf345dcf703a9af5c3743c13fb3ebf5d0dc7a236c6d197d6dd0bf8f804ab1f7c99b29e0eb8296f47d175df3cf1e0b353f7b76e1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}