{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1742250",
    "entityType": "User",
    "nonce": "0x8294bb4f118db005f0d37dd74c7530bc93efb02ee21b4b797b65e6f26a07a9c4",
    "signature": "0xa3ac1551d8f65117366638424a9d68d04027471238caa4929c577ff64059dff16c645d4b217247f8f67c700c6e0a32bb3e501aeb0c2391c13e50cd11bbf362131c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}