{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x97487b8b614634bb709a45c541d90b9529861b681d209d0d70cf91afc0a5f74c",
    "signature": "0x28dbf82fe0d62f80878c311e9580e468939af428f3227cc22d78ecfea55f23ef43dae035c07154d737d6d383d8f461706e2aee7f80dc5fa312bf9e9486c4cedf1b",
    "signer": "0x46CfB51Fda6B1829B8aF13F7d99133767B3F3b17",
    "userId": "467398673"
  }
}