{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107436",
    "entityType": "User",
    "nonce": "0x03f3c142865110d1e584beca3cf5a8aac083e80fc4d03062be5366ea20ba12c4",
    "signature": "0x40e7fc3e52df6244243d2e3e3a1feddd3507557be6223ddc67c79f530b1e8df71079e940491aa1d46e61656f9419786e53f98475d26e74f16ee7dab42136992e1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}