{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344176",
    "entityType": "User",
    "nonce": "0x033241c197b66672323aba8fc1693ed8f01941ff69b4a61463c66820f35bf3c5",
    "signature": "0x20ad836978e2c5da06300549f2ee749b26657a4b81ce14c3387bb04d086bc22c1fc0710f44d7253be77c9639a73594e851a450872bb640e8482b0f81555a7acf1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}