{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991528079",
    "entityType": "User",
    "nonce": "0x13abde7f4b7f0e7639361010c792f5223b3406c138632406a08efd31fb3bd53d",
    "signature": "0x7c237c785d7b9027ad7f26861cffaa54b1ef9d243b9529e98f5aef760b86aa9b0cf17134aa79284a41409db77d751423f6a1b50b34b4534d73034ed257d3e30e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}