{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210352",
    "entityType": "User",
    "nonce": "0x6f2310efc73834362dc89fb84d5f63a08a48bf19331c888d18e82071f7b86b24",
    "signature": "0xdbbee754d3cf7c00ced939f94313e09d50794c5cc488095c31435882b103995c5498398e348ff46ae34a5ed12607de32f6c4c65d7e67bbd72bc59b0c6edb3aa71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}