{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51224",
    "entityType": "User",
    "nonce": "0xdeb4d599487c79f624faab47b5e77eaadd3f9d05f0a466f736236774f2df04e4",
    "signature": "0x9807bdd0f869678d9116b6ec9de058b4e120c49101b47f1ff56453ac118daeb7469e145d012d1a5ca213cd034438fe4ab06f0f4d572b89c2bd4cabbd495859531c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}