{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508263176",
    "entityType": "User",
    "nonce": "0xbf092763e4f7337cf8cbd9f0c7ddcbf21b0fb1d4d1736410dcbb1eda15ec004a",
    "signature": "0xf9e3758adf73ce3597cc3fcf5083cfc3621f193a212a54061b3f643602619248104e35c0216ddbf2bb06fe82457e5739a355cb2df2af6759ebe93976337004d61c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}