{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae4c4c51ac53204d576d720a5806fd7fca4ef4f04d42c3c5c435568353a1f221",
    "signature": "0x7efc5d00f778c81fe1a19816019fc1f7141c50dc7aae3c6437cb5b0a9efc0d2322b267e5af8638f50afece37c14b4781021975046307d24f9c01e85cd2d53eea1b",
    "signer": "0xedE4a72d06f41698f3bebAb772353187671dbc02",
    "userId": "693836534"
  }
}