{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56024210",
    "entityType": "User",
    "nonce": "0xd600df8a13502dd4f0f2eb5d2df937046d14eb42879264e72a54a5ac98b441d3",
    "signature": "0xa041f0b824e49e95b7f859e563e1d28a14e9190fb263da42477571db942f05a30ac9515f00f959c6d5bddac20f78856670b6454724a40490e5a711fe766a76b21b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}