{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511688",
    "entityType": "User",
    "nonce": "0x35391b5db80fd2d3f44eecfaad509bb9347bccf15eea0132115a8e102fd210b9",
    "signature": "0xfacbfc6f45dd00f96d1a144a7cd920184be6163a075f8c5c2a73cad715e01e501647d9bc2bce4fa39d30ac1c8c44fb87e928ef0f594e84fab0c4edee3d4e43871b",
    "signer": "0x005385507D169DF7Ad14f23b728248Fe5464Bc26",
    "userId": "303866152"
  }
}