{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "160950",
    "entityType": "User",
    "nonce": "0x75696cad6340df6c6e4478853295338b56639b6a039493101b49726bd2428d5e",
    "signature": "0xca170ac00ad0d302a2c8f1c0751f12e7cc11a168c067491ed46cb39e7e6865a2693483d72f6d1c8e05704eb29557f9b708567264010d2068a6b65e650e34bd481c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}