{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50576",
    "entityType": "User",
    "nonce": "0x2e28ed0c694e2fa329b9e365a4d670847945e808c14a8801a6e603bd574c0bc9",
    "signature": "0x8d692fbc72d3c92bf766d40bf0d4b6d14414422e2a6de5991bf05cd1fd2e89862f82f3bd81c9328752b40657f3fb84855b2107a84ad28d8f94b6488ddc48385c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}