{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67875",
    "entityType": "User",
    "nonce": "0x04e15a17bbb5a33c47c20ec41429b683b01414697394164712778d83257217af",
    "signature": "0xb55cc106669994ab17c710ed97189aa785306c36be2a1f07261d194459884b105af17a6a8642328deed862d7cb4529bece4418e81b99c366b3894778d46820951b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}