{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "684344",
    "entityType": "User",
    "nonce": "0xa158b3e38c7cb6b462fc17a673eeb661386c65036dee5090a79d369c3bd519c8",
    "signature": "0x4499e29e5211586202786502b74349db60fd5837ddfd61e27a1701e26d3f1b9f2ba3cd666c4bb80ff9caa1bdf0477920b5e07e47cf8df694fb4c141a5c25b6f11c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}