{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10575",
    "entityType": "User",
    "nonce": "0xc28f24580e385c303b34ca2bbb88002df778b5ad3ee93f8d0d3d50c4bad8ced4",
    "signature": "0xa0c1632f2b217a29d8a9d82bbaf449b294ae8c6a577c23f5fa744ae12b122220057f8de9e293e989b33e73c35f82a3607963c46e8341372f86f6cf3ef7398a161b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}