{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128172",
    "entityType": "User",
    "nonce": "0xef9b8607cda8cbe3eae2ac2a5f5d11693a6bad4be0e83b2e1245897c12a212f6",
    "signature": "0x871857dc98a1e344a9757d4707d9cfa8a97bd9dd263e11357e83e8204a4f202b0c0ae7bbffa8b38e6f4f9749b51b7564e4525855aa869131b66347bfaa0480b91b",
    "signer": "0xc177dA99f6154a213E0aBd8752F518D7344C15D7",
    "userId": "186590"
  }
}