{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760764",
    "entityType": "User",
    "nonce": "0x2834b1ff7f2f27ccfaecb85da1edccd83135b500e3d0046d706696047e5d3428",
    "signature": "0xa48cd86f6ac1ed88ffcfc26f4f297ccb44db4e417ee02d4c3b74d7dcc280fe390b9536d308e68ad4f147fbaa80aadb6a55aae457b0cf2663fab376dbc95176521c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}