{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x59caa2428886848ce32b9fc43f21cb47900d54c8af7ee2bb6613f1a47cf97f13",
    "signature": "0x34ddfea1fcf5255a9b9836e3c3d13f9e6cc25cbf03c6884df89fd2c982cd408e345ce686a4cebd409ba0cb3eaf1d1f2038fc109e121a3905c8235b7f5fff900d1b",
    "signer": "0xD747540FDD48b0ADD908Fa54f06A2d2a5034d858",
    "userId": "725808521"
  }
}