{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x51bc7ffbffc735c6428e2f7af10242b0c376b428aa8eb8323c6302a4da1f9704",
    "signature": "0xf82fc9105e821665cba3dd55251c31c352592f5d3554e29ba687a2762d58d57076bfabcac6dfb607bd18e3c518fce362ed6c3ffc149281e53766e5a7bbfae0fe1c",
    "signer": "0xfc7064Ac6bb1bFe42B00EEE14298d29bEC53611F",
    "userId": "303606320"
  }
}