{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396106",
    "entityType": "User",
    "nonce": "0xf9e23cc16f8eb794946f9a4da0b5282be4fc8830846710d04777b8361f1d375a",
    "signature": "0xfccd2408711314b6161789bdff2bccd0ea7c954b3b55f1f267ee98ec9fc3c4ee4288b491708236eeeb813e399d298ae4da21fb71d7628eca6b29a0e1ea09c91e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}