{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3ff280445a702afdac9fae1e2452011a3304f13454af71b64f50ea226bee88f",
    "signature": "0xaccf97901867e40af74b69e13845ca6939d79ca133acb77cfa43a605659faf250ca1118bee3a18e20dc093bf3d8cf3c88e5d024aca7628fdf635c6dc74d1cc031b",
    "signer": "0xea757ff4Da161Dd9F610Da35a96cEe6986ff8a80",
    "userId": "134193257"
  }
}