{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd822583cd9fba91cc63dd216db1bd6cc4039bf435afdd80ae90e422e530ed8e",
    "signature": "0x73f7567c3f0e0d9a4bd9616f0f3da1ad5fa07d29e5a39e1ea93d8e8a537be2646f357d474e77f0e5860626dda89d95e1f93b411a519f40e14843e0606fff622f1b",
    "signer": "0xa7784525683A4174d8410859134a1a6BFe4c55E1",
    "userId": "322432902"
  }
}