{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163623",
    "entityType": "User",
    "nonce": "0xad1ed9a5f3c3de5c4ea1040c6f93812f1b599942d131b7858a13704bdad3a724",
    "signature": "0x73c1c122bdf5de0e427a836e9a7e7407757d1068610b0fb272ff7e02cf206a1b4c8b39f82000525276fd8295022411992c438e7e862c3ba4f4defbf0fbe1795c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}