{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237975",
    "entityType": "User",
    "nonce": "0x47e3ba66e1ed598f1e7d26fe80adda42ebb3182a5ae2a1f7dcda1da97a074a0e",
    "signature": "0x0ac4eaf07193504404a415ec0436d66c7453079caf56e830d315d9a13f9229de56f7e45aa17e002f1f46d19b91f610d11389440c29a0917d94538f0ec9ad474a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}