{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x8e7c1f27c4b0336b88b90138baf1a267ec3e16b35da81035ad907c9d65546795",
    "signature": "0x1d7fd8d746b0ddc0755229dd596222ba8ca21fd2374dd5f8f9e6f2752fae6a8b25dc604f1360cc9738609885abded31ad536be859ca8ee1745a94f335016cddd1b",
    "signer": "0x0Cb8508DC22f3eC228338F94fB8B4063F7418EDF",
    "userId": "496554695"
  }
}