{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x49ed50fccef5857f0e4f2abef9b0f52a9e9db6e64ffb990d9a12c5614e8aa3ce",
    "signature": "0x402937d0df804ea9ffd38c6eec7e3546196bd899d8c814b5640e90bc48ad2ea17d51ac233e93d5a5a12bb1fbd4656b53704595c2608e9ae1ca8d96a30aa143681b",
    "signer": "0xCE911100fDe11b8FaFA48fEE420B61C449239bAE",
    "userId": "235869994"
  }
}