{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100391",
    "entityType": "User",
    "nonce": "0x41bd1d82e74f3a56339dd0a86dac5f1f96487c1870bcd857421e5e76df0cf6aa",
    "signature": "0x9f52e4efc8f47047e83b0abf384f63922f7139d16056fbe2e56d9cbdd89b61c77da4c99bd29a2e952023788b7f06c98013044ca1a9c63447d171571e45d126ee1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}