{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57445",
    "entityType": "User",
    "nonce": "0x51ffa5d37ca28889952148cbc0f01e199645bc14aa9cc275f6042951b567f6df",
    "signature": "0xb6720f89d10ef3c90f307efde9fa2768e24b8659f3aad8081072f88fbb10172554339c534448b86e42d6054dcae1bf16ce5eac5d044bf953049468593dfb0d461c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}