{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1376485",
    "entityType": "User",
    "nonce": "0x884e8184af55b3d4eee0c20fff33815a0af4b9e29f9ed7e11bc0371c88f0d1f6",
    "signature": "0x8f8f5a10c026ea6ea662cb7b2f9abde23aeb5ebb998073328ba855e5441407f50d5864570daccdd4d7b82afb02bcf4d9ef99175a996b49a6af63e66e4d2f7faf1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}