{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317",
    "entityType": "User",
    "nonce": "0x35f11e55a1a0c7c45eeaf8ce1630b83526a37c5c677f420d71970218ca31b38f",
    "signature": "0x161d3b103cfeca5391fd1e9c2d798bd7de03ee1bbc817372458820330ce5b2013180229a1c56fc92bf99e486f5dc239558a501c04ab6ab4715afdaf4fc06ff1c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}