{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0x0b02223114b728dec28d8f3851362b5e5ec5ed544815f340bb492385367f5370",
    "signature": "0x10a7a694103fcb697f38a6856f745b1e9edfb37db74f1ae1b9448daebde998c0708dd2e35424b40da14f49456eb06ba891db40be539e8bc59ce96e2e1f2251aa1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}