{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "440467733",
    "entityType": "User",
    "nonce": "0xe7345f97125f7b0cee01c8de60543f2d621ed6a4d74512ad23f5d9976da1712f",
    "signature": "0x0a4d7c642ca25234d65b4c72b3e7352d8cab749fda11fe3cf78f657a05f8a06a05ac4bf89c429dfd90e2086268684008cbda6f406e166a559914c1cccb22bf701c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}