{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327722",
    "entityType": "User",
    "nonce": "0x5feb330a2496decb751bd1fed49102356867776b64880a53994c4bdbf635c459",
    "signature": "0x60676be37897754716011633837456338039d9b3894cf243acde19a1fd4b757f65c019f100295f3b2d64f3223b64b55e3277ae6dcac5503c3a146c9b7cf2dff01c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}