{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306102391",
    "entityType": "User",
    "nonce": "0xac81dfc569692efbc003d43875ce89211f38cd7d5eba89443ad1902a5b9c45c1",
    "signature": "0xa53a98f3d1a577bfe2fead04b056338279e18003770b3fbccd0848687bb8ca2809cec21446dc0b3dcf680aa8b1aceb9e45b03885dfda7f7736557d5fa63f4c791c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}