{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104609",
    "entityType": "User",
    "nonce": "0x71a6bf062cc97885e785896a03b235a8e8c4afc06143fd0348e4c36bf5648755",
    "signature": "0x7ccc0571c3a4aed88c8230f1c62bae751ca96f8e4e0ec8f8c03a08ebc256f82c4a822c61a88c5f032e0c22404c0d7ea4ee41c15fbe6ca98b51cf122ecd4d60581c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}