{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x48a3823c8589777aa909726623edb5c4d59fd40e3519d3dddc3412bf04ea3896",
    "signature": "0xe8b01f4e7706f43d4910456e7b02499ef2f181d330904e5cef17943eca20d50128e75ddbafc90073db68e9150c0a494043b7b93c5f257be2df8aa900e9f97d281b",
    "signer": "0xCD5fA46e77dE37E49A2c5709b901da7BbA2c0740",
    "userId": "291387363"
  }
}