{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc3143d14cb518df71cf5f7f2fe33cdf6eb90d75130640f1c1d391497b868765",
    "signature": "0xaae233e80d4dfd64ee270917e8acaef5d9cdaeff02d12a0dd76e803d63e1446575e6158abad91631b68da06237f56ef27cea2e75228ed5fef0a55f468311ad9b1c",
    "signer": "0x55468B5b5E23C33f7E9D5569ba2E65189f8206C7",
    "userId": "158468791"
  }
}