{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0xed61d781422bbbe67a8f50d7366ab91dcf273992275d229db8152d2a739a8176",
    "signature": "0x3021a60d5d9fb877cf11e2dc921acf2d484b6e0da45c0681ff8446588d8397ca6b5d2e56488109e9d2bd3ba3602187d4c596757954317f156003e1870a526c6b1c",
    "signer": "0xcCa2F763fbBDc21A1551dC866A06A4Ec74063474",
    "userId": "174400"
  }
}