{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6697",
    "entityType": "User",
    "nonce": "0x144f77ec256b18ef2cb977f8c473b5aa30ebab6080f86b173de4ea76d03ce914",
    "signature": "0xbfb966863027743e8ddc4ca8f75ecd71c1daa9a6a6def7a076b5dde7f5066b544f056d3559a006bad7bbff84dd354406ac7d73fc912b4918731c5da15db6c0c01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}