{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x3968f65e7ade62861f7d9a7159e365958c1d3a3fffd1b2452273aa9c64748fa0",
    "signature": "0x2db1ee98cc879de8a3f96f85da8e330061b785810073d5d31e685ff5cb732fea2a1a7ce27e978e4cab1416734df7df376b0aace5bf17aa1014cbfc3c53d5e47f1b",
    "signer": "0x03e9Caf2aeac5a0F0e4Be56410d67A4148D38Fd4",
    "userId": "47828528"
  }
}