{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338636",
    "entityType": "User",
    "nonce": "0xe31a26ab3cc04916467f8ea86f068d7a5c38fdeb8f5b2b700ed83343232424c6",
    "signature": "0xba971dc381d56b4a3a2331e5ae97516733b0324d061b78c3050683e7d02f7e0a5bff0583aca2a3e21102d5075ea84c91710216ff9759a96e21ea10648c8c7ceb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}