{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5564",
    "entityType": "User",
    "nonce": "0xd831c9c9f0756128ec35a1e2be3d7185749372d78c8775c435f76cc56e5e0dc3",
    "signature": "0x21d5aa1f0a5ba4c4a2c493dd1091a28180c275bbe768ef95c5ad346cdbd750cf7e7eb316e9d95671f30ac632b48bdff744224eaae5a2e887e0ff0c1c4f3618ed1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}