{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237325",
    "entityType": "User",
    "nonce": "0x697d31e157f58ab1b403fb87c3de19eb7b99b572d90ab52addd1f96987417072",
    "signature": "0x1c3a1179c5e078faa2247a14856db6a8d396ce75212a6003606f03f8afc8aa381755e82397b8b514c4d1cdc3a61466993c35f434ff2bbf68f74deecedea100c71b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}