{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38374",
    "entityType": "User",
    "nonce": "0x675a0d1908eacf1280032c1b0ed1934f56d691fc94f775588857471c81f76582",
    "signature": "0xa8292a079c0e0c18b023c44e859031f0bc523acd146f9e356c35cfff698f002440fa50456be17d54b4283886ef11866cd9aba582987e6dce475cf5dbccee01051c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}