{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x123d6fbc8b2ff3fb36de68b8a3c6b58ab3ea99cb518ed9bb0d9cfde3c337f136",
    "signature": "0xdce6b6dc2fc1b68831491d6dcc8c1d929e3667ddf0f7334f854213244c1068f46c72eb7058857e9193d18b382d96224d46a13dc46af95c23732ba824be1b258d1c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}