{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218347",
    "entityType": "User",
    "nonce": "0x27d41bbc1d3aea173a6a4ec9c8109b9ae791bcc86b675ad6df0b2b3d22615233",
    "signature": "0xafdc67ee705ba26bc49b615e878e54a4ec3fdc7010ab02997d51b96df8ab993135fe8c48adb45f16a37517bee5e99f9a029d461e077682ea395e44873a3ba63e1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}