{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x22d7bdf1b9c9ae0dd63d0f68bac2e2c7b10b4dff33b1a4638779b79db6a43339",
    "signature": "0x7ef4f9b92e9f1ecb1343f1ba7b3fc4ef8e0a2d113d6594362c2b1bbaf3004f1e0035344bb0f2af56cb4d5c53fe0e79a149d83028ece43fcef3f84a6d6ce404aa1b",
    "signer": "0x914c1658bB5967D43E73304cD48EFa424776a6C8",
    "userId": "216111760"
  }
}