{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80971",
    "entityType": "User",
    "nonce": "0x1113c415c74d4b542463257f0b3c0be97a945c84669494386b5145bf67567742",
    "signature": "0x16868aafe6274ed695269f853dda5a59f027ca0d67a87963d2f59055b7884daf5bb1b5dc0d29b9afc8dcac80cd552cd3cdd58343ffc538535c0a24532c27bc1e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}