{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x81f1dd6f701bdbf59fd6f16232cb688dc34344681acbc755a9cb59ac8756b236",
    "signature": "0xcfd1ac7c18eaca65a901a0ea781fd2651478d90f6b786ae63a6b25622a6c8ed711ade4ac97a2e6ae4e550b3b8767535dff0a1064204ff97cf2f791a25fb990dc1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}