{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x99ce3e2175a0c2811c086ac0a613edcd445c389962cd8844b75f92ed0e757e36",
    "signature": "0xf6379aeb65042bbb785079a39cb978c63bcc5ad00dfc9091b747b6b9029a3553047621399617b523e91a48a3de768cb2d7e46ddcc762412a81d9d608c53672b61c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}