{
  "manageEntity": {
    "action": "Save",
    "entityId": "110787041",
    "entityType": "Track",
    "nonce": "0x2f36eb34afb864291b16733ef3fc88d0ab1fb3aecbe2a1aa3fbf7c0f5086935a",
    "signature": "0x2de3b81dc64f149007c3f8ec627bedc5f9a89a4bac43baae5b6c6e3b2359715e03c27d97456f0097586f8446ec2ef18a41fd4b346386642199548dca78de12731b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}