{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11440",
    "entityType": "User",
    "nonce": "0xbb84e46eef31502d0b2fb65b5cc9a53c3ca21a2310a7c0fdab28b06702f7f8d8",
    "signature": "0x33d6514a048bcca79278bdbaf50bde99f51a6cdb1b12abc31e1a8976bc0d594b547d140d2e3b8278fb8bdd3f971d17a6db67ef26db918d8751f218ac2f1b5fa61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}