{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131390",
    "entityType": "User",
    "nonce": "0x9d275834e72ecebf88c8d6d030ce476d09213baa4bedb65642484f7e866a7423",
    "signature": "0x0162beeef8b43b5b72b2359290c7f2f9cb69bc09353aa337fe63be03737724cf2de6f0d9a4a0035a82bbbc0bef85d14979431f181ee6f08e824bffcde639840b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}