{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63175258",
    "entityType": "User",
    "nonce": "0x5f821ce9cd58fbb6c2ec606c9a7e1209dbad9a57ee4599cd64f9a68493ba7290",
    "signature": "0xd0b21fdf6f6f761743acb517b0917249c483ec3171c3b3561d33ef8f4519cde25d23ccd5d03fe4ab59439b7fbd314cb463e5f576c5e83fad095e054e2735dfb81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}