{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "837802675",
    "entityType": "User",
    "nonce": "0xc711f2f76898067970c83a1a7f1f620213e4ba5cff7be85c873e3ff998e7e9a2",
    "signature": "0x6e8efc30258032784cd7970558a8baca1eeb56df87705dbd04484ef16067ca405bd2d46a0963fa898a5201e724643e2bf3532b655715465c086a1df31bc98b9b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}