{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "631756877",
    "entityType": "User",
    "nonce": "0x9cbd7dd6920d675a8781138cf69400416a0a2ba4795ec3db52c809804923177f",
    "signature": "0x40c1b6499622c67f17aa15e96d3325823f3b113cc64bc1ea2a44d19f59444e311beb96ac17c4c0fd5ad7f5f3ec93dede377e427e453b25f28d833ddc4e8baa981b",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}