{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135983",
    "entityType": "User",
    "nonce": "0x780948345c26f71fd13bab14b6f6040e718e72e922c1b80c725800200d4ee3ba",
    "signature": "0x6a2d8645725d64e63f423f9ce6b97fe820a860e70604a7f46a42976c1a3d9e4d476c9bf513a1b97258d87442b6c970d99de405bbc165695025a5a8c82da130121c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}