{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24be48a2cc79efb1b279e9f4724a0f547737293e4a1303e1a1a92d435b6fcca1",
    "signature": "0x64e0d24fdd58873ca9e40269ddfa77201c7daa3c2df137e125220cdff0e3a1656b34f900be6c22748832e9feff498f1e68ebd8329dc71ba8d425eb8270f56afc1c",
    "signer": "0xe3ad44dF1f2B3f07dFd77e3e6EEc2Ff4b172715c",
    "userId": "71923805"
  }
}