{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135428",
    "entityType": "User",
    "nonce": "0x1048d02b1e3cc62b147cb90a2713f1a230a49cb31a1793238654b4938f332273",
    "signature": "0x05e81cb8be3ac241738f196d87e0ae0ad28f370cbb0686bcdc46b2018ca0040a5c93bffd4d3d3cbcd5316ee3d7e78e65749e7ee2a6c9f23fde85fb6cef3e870a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}