{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346741915",
    "entityType": "User",
    "nonce": "0x286827753d4b90f0324646508c4d6fba7e45a3096e40227613a72d65ab8c59b9",
    "signature": "0xa43dc5274b639257153d5cd6021bc9a1664dcf142cc60b100d59b206bd171c8d097ee7d97b8ba5b5a11aba035cf47fb575512eb727a85065c993d71bc32e71291c",
    "signer": "0xD0f51E232A92DDc965FB1FE51d04200D15d10fc1",
    "userId": "536634479"
  }
}