{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0xf56bdd5ab9a4e65c60e9bfa10326a76989db1f119520d8f77524a58d0966a792",
    "signature": "0x994c5744c4f243ad899c3ac7c171afd9ec44c2af9473ad5035b1b180f75062085ae0e4ad72e0d5b05759bb15af5337c5f2f4f66b527f4e8343fd937489dea5121c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}