{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xf1d713baf3d1f1a0e41310639513cc7b516d8ba41b6569d3027225d9cd622f97",
    "signature": "0x6b0aeeee806eaee294f3f8d1b20384dc40e05a75bc987ede003242f59421f7567303538bb0d0506dcd99dd20a55733e66e30787ca9f9982ea98f1f319789d7201c",
    "signer": "0x176e72dFeDc28F932BeC73B513ff006a4b45dDa2",
    "userId": "93920271"
  }
}