{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xa370256b3c4c870d67740146997c7155ea36a9914f70cb723e0ce0457d7c77ac",
    "signature": "0x11cdf00d9f19defd5cd7dc281e025f491d3b2eb60ad31a387c21690624498cf44ad445b4b10376e412710e9d58776a871da61e6ee897cc46905cfca9d668d64b1b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}