{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf07e1689fbed322cc5396a77ba3bf170c1f6486eeb8ff53f29a1c4119c0bfe20",
    "signature": "0x1033aa5e1b9941fbbc0e2031343ff3456be37d041bf8b520a2e3bad455dde7130cafa8b145b15904d23cc8ac89340da7914fdef151d67ab0037d3ad7bb98be011b",
    "signer": "0x5B24A34Ec733B1B44FbC765802F01944320e82f4",
    "userId": "716881751"
  }
}