{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xea9d45d1494a986a95562fb9959d7206a90b43a445407b96cc7c2fe01ae2a37e",
    "signature": "0xafdd024ce48c820eee70abea87995ec7eaf2b2f55f5c4a5f611060f1170032bc618760aae30f567ee33a8f8c44243a3e573b5bcc495c7aff5e4b5e01b76923c01b",
    "signer": "0x645AAbB3BF848412862B16580BBDb4CEeBBf2EE6",
    "userId": "47150955"
  }
}