{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x57580878779b4ffceef854ec65aedc6171b93996a7be052ac09a85504bd3e2dd",
    "signature": "0x504096b2583faa47276622031780de279a83b8fc56779dc0a033f3e3ebdcb6c168812bc62cb9d2f9c2e3b6e1bba63aed95839c6514de25235a6b41cd8d8b65611c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}