{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71624",
    "entityType": "User",
    "nonce": "0x819089c4fa3d7edc0d3b76ce45356e982db73b1ce59efcd409faa6861c276f8e",
    "signature": "0xe03e63736ebc7292b54c3271de7a3f8ac6a0fe72dfd75247463f6de357a8470143bbefd776acba67619ae5c844cea725f305a43dc90b808938ab4e2e61f359a11c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}