{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135573",
    "entityType": "User",
    "nonce": "0xf8cc7468e6e12fbe4c5670a84f1ae2d18fd854e937ee0aab9ba6670e9173176a",
    "signature": "0x3ce018cefdc6238a1393751c29ada95071bd91387e073d68506e2e8e82208eab129fec8ce047aeb1e5e618ab20a5266ae086b39e1f9f2785ae8303fca7864d531b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}