{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54660",
    "entityType": "User",
    "nonce": "0x8a9a55f095447a28d821a717a12cd3b2edb6f39ff0c0e2e337478727bec683f6",
    "signature": "0x07e3a5fda932559ab21aafd8a8544c5ab2c81a8c9151bbfbbc628ff3150ff0aa42a4d06e23282691dd5f0cb030d47879c01c93b3cae2cbd174fdfa83c0f602801c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}