{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xfbd41d501f76a0917c03929451777c195ebfa17260e6dee1b46510469e01a83b",
    "signature": "0x92a558aa4c0cf3e86981d8ebf6f69704621fa709afcc6c40a9ccbfc2a8dd79882933ea325e4203f27c2964898135bae1f1671696968f01d4c9867b27a6b9623c1b",
    "signer": "0x8f3dD60187D1293D1106436e79dE8018Cd72878B",
    "userId": "712753817"
  }
}