{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8182",
    "entityType": "User",
    "nonce": "0x30d922b8ca56fffb486745cec54e5cfa51aab1b846db94eb3a261d1a37b436eb",
    "signature": "0x1a997f927d61a67d8d2bef57e6a0e42b1c49e0c8851d62d0bb236665b54628270433451f10996d5282558ecabe4b19891e780fcf9f9484cad3dfca0770342c8d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}