{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326897",
    "entityType": "User",
    "nonce": "0x31da2acb9dba5268f4505b390b0e59f6ec82b652ef5cf7675c39f4097cc9b29d",
    "signature": "0x3fa9d35949f9b9163d547b48963d5f1f1ea50ffb7f50071888732f951a15c9b27ab99c3670b72921dfffd8ed1d72eac4507472be27d6b2125366fec77a4835b11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}