{
  "manageEntity": {
    "action": "Follow",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x8f6fb0f6dca93ca89fb7ea4045176626ebd514973227a8a6d32f69bad8ff3bfc",
    "signature": "0xde1896f1b722158c840499771dd97592e3c98278a014422df7cb90da58a3d781522c373996dc9b44d83405fd523e9fa23631164b19c97959f4f89a9c3166e5051b",
    "signer": "0x13f8ca0832087662A9bA298e1F708853B8615826",
    "userId": "990836999"
  }
}