{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "372384",
    "entityType": "User",
    "nonce": "0x9e496a9ad6d84c9c3bd0c23ec8e5cc7021d538a9113a0678abc6eb55a856cf40",
    "signature": "0xb844dd034b7679d41a9c73852d8b6e0ae67449a67299fc4790ed4869c233c5a442f28e46daf3256448b0d8f6a4075ff082c70ef0b7c4a5f069e13d44e5443f391b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}