{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "654049242",
    "entityType": "User",
    "nonce": "0x177cdecdcd706cb57cd535bcf546d1c8355df18397a1971b05713b75f4de7e44",
    "signature": "0xb99d028ea1f2a1cfc1775a2a052e085fce72a9c8b40fe38a379d04296f11ff99112bf78c92ca9d37dbe2f56766e33cea575776a2e428e805db4ff38e53aa86401c",
    "signer": "0xce8922BCeB6356Bcf772BCb592290B731c4Dbf32",
    "userId": "322981683"
  }
}