{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "803288761",
    "entityType": "User",
    "nonce": "0x75fe4a27f28e1e063f33b45189592737a58c45004d3d0154a9c6cacef9e74f34",
    "signature": "0x13a3355c58efff53b987dc992bc58970794d7a4ae71bf7e12b5799001845164125c207de0f0f68dd19aa37ab44cb0244e88230767860e17c5736a990f54844761b",
    "signer": "0xe309B4910De68C7B1DcF8A12b8F7603E6cF8576A",
    "userId": "354814803"
  }
}