{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "662612484",
    "entityType": "User",
    "nonce": "0xdd2098a488be630da2127008bd6345d3e1555f76ced298eeec3a9fff549c1d3c",
    "signature": "0x28f7cf125a3b74edf2fe09097169193e62e7e924b35c1e5c8b0007262bb9cadf6a30c272e8853fbbc2da4d571f1a756d6c1dc0edb07c7223c24c59df75ccb4231c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}