{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b920643395bccb53b89a86f9d43e180330868e9c9af31af9329addb2c2223c4",
    "signature": "0x2a0666250ea690a9a1f1421e12820784587c2d22f4c41245d504de180a01ec5e25a4df411d504abd89742ae01cd7a975629c45efdb99c762eb322f2365a3e29a1c",
    "signer": "0xE6A43316E0217953844758230fa3dB4c8a64c6ec",
    "userId": "806983641"
  }
}