{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf087b7ac17d10f06ee8f8dae6a6738e951603e9d94e46c97d5da3ee4fe7bf951",
    "signature": "0x02f38969587be2f16069a7676a512087b191f5f2b801922240dd60cd7dd8285d4649209138f8903ed4d6729a8dd0c0eab3dac13aae9bd25e5adb8c69d6aad58a1c",
    "signer": "0x20F56c0380777922119ef8835dc4D292cF777768",
    "userId": "28591735"
  }
}