{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x43723494d0dcff6814bfa3e61f5014fae29be6db8da9738c4d8fff5e58b1516f",
    "signature": "0xdedb4b6b302e8bed622f79753363b28a34375fe3d97584d058bafefbdfe341dd38b7c17b08af7c5b8ca21dbd8e0558dce246cc95db1d512bffbb0776ba9967de1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}