{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x812e2b48ce89cc9adbe80441deaa7a7f918ab613f9e58e4c4d23c137cac6fe3f",
    "signature": "0xad3859f4ab84c0463e47d1ec9923f106ab5b2d08d61fdb23e77311d0076c4fa76b144666ed2892cfdb9435920dbdb296cca6e9bad5532cac3ef29364cfe310a31b",
    "signer": "0x32c5e7716a3F76737C1EDC9f1f1Df3249364d78c",
    "userId": "141325799"
  }
}