{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108599",
    "entityType": "User",
    "nonce": "0x47e97ad1d7b141bd91ed3d9f06f3b360a4ec5436f2f1a7466b45adfc8226cc03",
    "signature": "0xd009cbe62c974b13a526d3100cae8cadf4b8e199d2efc96b03c4f36a2fd14cd47585543449ffd2250fccc67239540369aed91f24a80ca5eba544060fda482ff71c",
    "signer": "0xCbEafbfeaE89c95e1E2c0913fA43e0908f3376dC",
    "userId": "878436029"
  }
}