{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107540",
    "entityType": "User",
    "nonce": "0x74ae5df9e80b6a1c4a053624dde746754cbe334c12bf294e005509437df4f184",
    "signature": "0x2d3fa37e5a2592bd4829a69b16ede0975c9ff11156812d41333adbbd04c986f5582fcff399e805d485e5fbec3ef986e343b9ae0af6300e0e3ca99ddf9d20fce51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}