{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x69e88238e28b419cd24291b732af0d16deb3df7cc88dffdbc8ba6a9e078a9a94",
    "signature": "0xf1a363f31ffa1feb8344aa66c55cd66c553d98a9ad4d93c2d9fa749c758a5f3941ec9d521bade420d43a599c27e8e1d0a38842707773e88d8f4e7a9456060b2a1b",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}