{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x0f824605b5edd9071470eb61bb8055daf7e105687f0405352a8620ede5afdbe6",
    "signature": "0x8b5b7dc5f963da8284f20dd7be6b923da934e95d78dafca40943c2727ea776d112d22f77e5197c196055c02a5ab369667fb0dfcdaec11e08eefab9d51f8eb5a11c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}