{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363226",
    "entityType": "User",
    "nonce": "0x48871e87d4bd192c10c2283d9871caaa3c771928452d46ba4b76a0f6a54c2421",
    "signature": "0x0467163f07365710f671312ba38afea260d359d036988dd53be5a0ec43eda7307481019d6aca9a0e6fadbf71382ca45d6b6991aa13a92dc60b6611e53ad231971b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}