{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2f01f40b848fec123d210c867d8d83c86fe4cc35784a0e6073e93df83e8f0ae0",
    "signature": "0xeab81680df3e3541422b06ce821f15964415bf9b1d79f4c9bc7e64d7ac9a278e4880359ffa2f0df710565c7d23304a470dca06f6fd037e2a898550b2a3fee4c01b",
    "signer": "0x9D946a2100aC1DD41Dcc5Ee5bb4cdf5DCD249C4A",
    "userId": "318036436"
  }
}