{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "634886384",
    "entityType": "User",
    "nonce": "0x5924a80e8c0558764f40dd350f8259159da81bd26c2a91a51e8e88b10f4eb832",
    "signature": "0xe7d0087ff20872a7bee86d68c4bead757653cbc6362bcf4e00882f77a6fc71d900f65e91802bde449eee8ffef5db2e1bdc02ac1273bf331663ac2c77e2a0a8a31b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}