{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xbf3968fedb49336fcc6a2768e124ca23262945fbaeb7ff82893bd6785ac007cd",
    "signature": "0x7b3ded19b4a37a5b6bee30f76a2765a917e2c881ba34b8b09b87f571f3eb4cce07519b9ab2ed03280215ca17afc8cfaa0ef45150af222ff84620424102aa3ba81c",
    "signer": "0x2A444Bb92dfE1aA33563161247b25Be9D2fD1A15",
    "userId": "276491226"
  }
}