{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x78cb948cf681bc089e863310bad6a17504022fc84969c4fd91b15cdb6a389d72",
    "signature": "0x6cbcc3c1a0c4e4253bdb2669fbe4ebd75d9b1f817afe447a199f67dd1b8f97d00850ef8b706de991989ecc98cfbc09b6b004cf00e927a0c78314faa9afb715861c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}