{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43c61fff6cd598b636ca63e1988f19190039a7c1e5981c69b19958fea89d1df3",
    "signature": "0x656eed51eadc189e1c6f13680565afd26ad71692d1d2d29490429ab5619362c82fe623a4d7d5d24b1999699baada6fc0c543d2aa8f7453f0d5e29aa917126b4b1b",
    "signer": "0x07cb9FC9147CF1353b74d7CDE2e0608F9AA1765D",
    "userId": "531346517"
  }
}