{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702123",
    "entityType": "User",
    "nonce": "0x32941fa8f68421f5661f357c45e3c981a594fa6002d57ebb9836a124a9273c3c",
    "signature": "0x6ada74edba7f2266903feb36d9058c9051ea8e2306ee477beac6380cb426744a243f99a31835e1101592a2c62f2f5fd5f58e542632859272e36210b4c21dc8b31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}