{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xf7857497ac12d32a7d80e89b19ee74e50767bfb8bbf109295f59aeab53511702",
    "signature": "0x33028ee6e3ad96d9d6885a06d8189f219f4ecd50edc98922512fd4669bfa9ec5280fece2e56a0f23dfe3fdf60145ee4d5ae8fee82268a41d3f8712f23f390cb41c",
    "signer": "0x03dB479a8E887D4696e53C007b70b3EA318049d2",
    "userId": "773573937"
  }
}