{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704374",
    "entityType": "User",
    "nonce": "0xecb2d54cb6ea7a87b3690ce9401d52fb50d4ac373b53c393e58fa201090ac86a",
    "signature": "0xdc1c2efe102abfb711074645eb6e638a9da2e217b329ecc7a9c4b7e895c7fec61e55ba169efb6ad2caa61a8a899f42a053d5eb0ba54e9655a23e71a0375ae3511c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}