curl --location --request GET 'https://polkadot.api.subscan.io/api/scan/collator/meta' \
--header 'x-api-key: 4d0c8ba32dde4a06bda83d52af49120f'{
"code": 0,
"data": {
"candidacy_bond": "string",
"candidates": 0,
"candidates_total_bond": "string",
"desired_candidates": 0,
"invulnerables": 0
},
"message": "string"
}