{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010728",
    "entityType": "User",
    "nonce": "0xe9a37d2920f644b9d619ae126892570a2e66d4b711a6b987710a7ed9b90393e0",
    "signature": "0x4507515f9d2b2d38ba0dc9adf0e4063b76d002bd90d32a8bdd9a71359bc7b6eb28b07fd594a00571a423a927b7b661d684df1e0ec629495a59a3818333dab2741c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}