{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102312",
    "entityType": "User",
    "nonce": "0x6b75540e89a584b1f6dac2b8b7b560275ee40871ba74b646bfc44fd376d4a224",
    "signature": "0x07ee1000c2f06699068543c826a13925cb2330c43e28189bec3fb0cc92abbb024c53d1e52da2758ce4f8f3369dc4e46ee065e1b037be44e209d6930b07ee035f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}