{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x8f9991c2e5bbfd01a3e63c2cc4ef8d696b13cb33f8d78150f9ef63521a11befd",
    "signature": "0xeb6a29a271747640732156173bae273a513a553aa557ca14eae079ba060d33e747205068d766cf3256b5e4d19352000815ac18449f4c5cf528553eb03fba736c1c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}