{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "596750044",
    "entityType": "User",
    "nonce": "0x5d10ccd5e3b79c09082cfd76070fdc8fae6784a7b9aa919ae45b2c8bebeba458",
    "signature": "0x935cd794bb1fbf853ce8fcbe9149bd58792fb6b3567fe348a71d2203465192363eeb3853a2b51bec696aa6c44103b8bed2e26676ecdba83a3fded76e13e861511c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}