{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667085314",
    "entityType": "User",
    "nonce": "0x2aac31b287df7dae9b922175b08a65d1c3c0ccf9ff2b8e929c847577a772eec5",
    "signature": "0x776d5cba56d850eea3282cbc7fee1b89d13634831d954ad8f8c0014573ad2d0323f40ae648a492cf4422356dff4c3b4d08b97a666d4221976434f017bf1e39481b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}