{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280440301",
    "entityType": "User",
    "nonce": "0x137734b8eca65cff60df754a5e6cd36d285382c249d21e34283757525512cd69",
    "signature": "0xad66e3f0a543f94eacd8ed27c2e7b5b95d8267eb66a2365f12ecb95e5bdcffa03be5b1dd9ebad931eb38d7d0a5ba6eb3c120c3374c0cda65ce94ef10332095361b",
    "signer": "0x5f7a2bcadaC17cD6C8Fd726c2Ba3dE8bE24B7D31",
    "userId": "629635445"
  }
}