{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6848",
    "entityType": "User",
    "nonce": "0x8c531f5606dac4990ba7bd36c5d6307c632ba1e02e79b14e8446b4bc0bb90a24",
    "signature": "0x762c3e8f8e11f27b494f12ab2e1c4be003d76481700334bd014b83444c342db332cce9f688e436b1d1c8ce50ec6cb28ee976a3c0c3ade7fc1c4292113d2573061b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}