{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x21da127a34ebb8debbfe63501e1f3e089997ed2f2a4302051eaf31bf0acfbc7f",
    "signature": "0x6c1d6464d582d396861306ff94ea946000475518fb4e1b641d2e27f6fa7de1b77c988a7a34c255e9f6ba1128444e2aad8b1b786b3c5a94d99933e88a08deefad1c",
    "signer": "0xAbc5125eb4F7160CA202e3299acD7162D01f707E",
    "userId": "923832322"
  }
}