{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf5975ac905748da9ae7f4a6ebb6d7c0e667a302a45b12ef4d0f2272098bacbde",
    "signature": "0x7f15f3cad7afa71144880d50726b37d2f162c49a2643bce823a88e4f9516e091235747cab3efae6c180ab3ff706d599c35dbbbfdb01951fae396d5e14288f7f31c",
    "signer": "0x085349436401B76F681B21fbfD19682c7d29dFe7",
    "userId": "936565475"
  }
}