{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144608",
    "entityType": "User",
    "nonce": "0x27a301f16ad28adca15f4c6240def7b63d97823d69f7ac7e8d3c52cf8698a39b",
    "signature": "0x93fe7c698db022c0a1bcadc3066e5c65afeb8c0dd13ed2cbf9a7e9fc427f1197166dee7e52a5db8a9c0e7e3eb3b9aeb7ba5bf8b1171563d419d551b6b5114cd91c",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}