{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea2af1ee1a2e4c1b4597a83cbfd8bf5d4229e71ea7298eaabc33a45531cbcfeb",
    "signature": "0xdaeb22c80e42faf16280be7954d74225dacf6e3916ae38efb7d467255d2e5d1738e9517a247c32a9552194b6d3a0ef009e360b35ace67287873d31fc55aecd091c",
    "signer": "0x5D00322270e245E33ccB70127b557dc2631900Fc",
    "userId": "503107386"
  }
}