{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340128257",
    "entityType": "User",
    "nonce": "0x0a238d2ef9ec04ba075217e06971b4681c18130b4a54548286d83fa5878c4882",
    "signature": "0x1ec9e8b04f166953d2454fbce981e6a12a4a3a4fdef45a23cd01c56f498651721a11624d8c8e55768c41972e00141ac893ab76a2b5e120cfd63e2575480e276a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}