{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27390",
    "entityType": "User",
    "nonce": "0xfb44f60799ec9883abba04bcea64aa62c4e39c8b1012dd4379b837753257894e",
    "signature": "0x47f4c72c52a4f197189f175ec76b8ca2373074f78870d0ab2f6191afe630c4e873b2638b95713e57f9dfa0f9ffc311e1124c8e7299bc022747db5b110b4b765a1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}