{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "461533672",
    "entityType": "User",
    "nonce": "0x52b58d1885209ad04bb333126e278384739bda5051b5f77aa928db2729cb0beb",
    "signature": "0x89580292c41e1e280796a4c81100400c9ff174b02d661207c5c336792c6f887065def414bd41b8d27a9b1e7addec499b1c884a3b9461891433bdcb98fb6024e81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}