{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593893980",
    "entityType": "User",
    "nonce": "0xade3178acdcdc729498bf8b1279f076e4b375576a2ad513e1a40684408276f22",
    "signature": "0xc8cb8142d7ba3779bf1dfe0fc053c78bb3b039f305f883ef32a31fad7814305202da77a3fcca73b1e2c74a18f9e5f54349faf3c5fba3d98d504a2d0fe35b27371c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}