{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "962001878",
    "entityType": "User",
    "nonce": "0xafd5c101fdd2d10859c2901a71a91c7f535c1ab88a5a6000c2edf5a3b1f2cfc5",
    "signature": "0x617d215c834d23edfad5a656a7054d7b701a2255b69b231944a5b1a1ff682dbb3e49c44f98560dbc69fa5d66007070bb7304282f52d211e4fc4fb95a2c4f594b1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}