{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x0d72a7f026438b7c1afa868cb91ddc3e93acac3a11b8e369e6ee78d3f97e090b",
    "signature": "0xbca5d1a344d1b87a0aa5ddcfbac0efc907c578b28624ce938f48d4ceeae2aa5366fa943ad0302e49d6958b64ca9d9cfbfba73970ad68530f62307d21641029721c",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}