{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211023",
    "entityType": "User",
    "nonce": "0xa684c6a93f9dbfda946916d1f1e3f1cbfd6ebea8895f0b0339b0d51dc4e62550",
    "signature": "0xf4951bd6e4b64d745823b624aebe33878b57f46abe9949d4739782b21a798c2d2df6e70179646adf6790d54afc48d71bc7156ddd89ec132a8f696e43bbf6191e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}