{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211200",
    "entityType": "User",
    "nonce": "0x66f9988596ea26066a157972e29a34972209fba8c0260596909933995890ee1b",
    "signature": "0xa428c21259325614c2fe050ebc6b8a77fde7e8ef73000e45ec31743ef9cd0932205f70e100a8eb118df7b1c3e34f68e710d6fe8193d0f35e7280dbb52d4103121b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}