{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240433",
    "entityType": "User",
    "nonce": "0x96e99cdbbbdd37c3ae0632ee022104130c21c2637524c3a4a1a44dbcf3cbaadb",
    "signature": "0xc1c2a103396770200eb1d2dbacc2e070f5c1f2b7d62c677cf90d47d7ad6a345155a6fd2b15468208474dcf5e317ece35e2e8b6a288fb2d98922e25456310a4ec1c",
    "signer": "0xf03E2eb658f4057Ea4255CF34BcE6009938B86f6",
    "userId": "904522318"
  }
}