{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258655155",
    "entityType": "User",
    "nonce": "0x8ae65c0d9b7a8988f4d6d9c8fe90145d3001658af378323b21c766bbe93ea501",
    "signature": "0xad78c32452a1147c22fe44ffddcb77343e6d4bcc5498264a64aa0b954c35e36d67fb64fccbfa433af3db09f8c6f906d865faefad98738c40adaf7b4d34a18a021b",
    "signer": "0x796D60E9fE921C82Ef20f6329e27dD246392f542",
    "userId": "809803"
  }
}