{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185302",
    "entityType": "User",
    "nonce": "0x201add521148a5824e48c4e560316975fe6800b1eab12ff2dc39f38b9a44bb5f",
    "signature": "0xeebdc593402e61c294ea3b1262acee21e977499a4c89b5a2f6cb42794b43a21059854b1a0a2ee53351440d7ea304918d30fdb0c1fc5816a08c59cc7718acda6e1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}