{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66968",
    "entityType": "User",
    "nonce": "0x5eb4a9f785ae18352f2b25265bd683401abef8aaad467dff1e41c7c0f23199df",
    "signature": "0x406dab04dc74594e66ac4af6b6fb8d99d5b891146e0f63523ad2ca8420ee833935519eb84d6567e843cbd68640f366c28977f20dc341122fc189f4abd9c29fa01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}