{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50691641",
    "entityType": "User",
    "nonce": "0xd0b99eb3632e12dec5d22326a92aee7c94318f5998fa9861d6cf0c478412efe4",
    "signature": "0xfa50d115e470aec85dd5b0d993d34c0b63ae0739cd3254c1f4fe36349c79d9de31bd85e56d31f04a9cbca7cfe6da6b9182455be6a7abc78b3461d4d914c5a3091b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}