{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345491183",
    "entityType": "User",
    "nonce": "0xb6a0a20ce5795e2153d027a477eb136941b4c8cc6e7ee1a57d80bb234bdfee48",
    "signature": "0xfa27e8b84329342fe1226158c35c2dbb7e60726528b6a6c66f2b249b59b68e8a1a8e52126948952910781e58926fe3350938245ffb22372415504b0fd71842bc1b",
    "signer": "0xE5B01ffC0f6C8237F3F8e55b3c67A263E1f9a4f5",
    "userId": "498611290"
  }
}