{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63122",
    "entityType": "User",
    "nonce": "0x9bd835f847231d4e62792beab3cfb14ca5cd2b67071fef17297ff380d2b8e225",
    "signature": "0x4418370df07aa73b2a9bf74571a1644e33a1d6a0c38fe21881d8b676f99ddbb450ddbcf4e6baeadc7f8fd864cdc9ffa9a237506d48fae1bb54b4f4dc956e0ca91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}