{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135129254",
    "entityType": "User",
    "nonce": "0xd5668953556bd58076e2c205fa4de33756a9844b4c18990f1b83847f5e76489e",
    "signature": "0x780b98c602c357487edaa68c7498889effd84857e95e1d54004eeed34048857b09503e6b33d6797677d549f2f1828f935e90e0ff535e42be79f74f82396d9f771b",
    "signer": "0x97Ce19D122F5b51231cF4DBbd25Ac36CBDd6CACa",
    "userId": "426864186"
  }
}