{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6920f4cbcc8e1876ec502ed85a216e76c4ca01efebce4097c3ddc4e1892c9ef9",
    "signature": "0x95011ffe690e592e04bb56af9b04e259d8536891b708921486928ef7e884cbf35f9e18c4a5cf3ffa45a95190d947b197ca62c9a40b527a433b48f4110b971c5e1c",
    "signer": "0x6B723e19B91cA3B374BAC303B9eEe2157AB4B700",
    "userId": "968065357"
  }
}