{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134473",
    "entityType": "User",
    "nonce": "0xa3f79b68e0ae9c944071232f0e3d067969fd7c48512ac9b9a467b1a1aba972e0",
    "signature": "0x57ce2322da9f1689a734f434711fd81c434d21450a89c47ef0ba7234c8587ed175ba0f1229f62758b4ccc0fcad92e3d1bc90242bf3978e1384c18024db8fc60e1c",
    "signer": "0xe6D00d55Aa2FA80e2c21267f3C834BC05CD23F3a",
    "userId": "18116"
  }
}