{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc58c812ca3de42f42e2ac987d64833fa8a59e73721d2dab2300fe691a1bb7eec",
    "signature": "0x7812a68fd48c323a5f66e61a62f658ae86dd48e905a45a572f723950be0b62b3036cb9c45db656960965f98aaf4172623f364d1d9362c7d49316114aa3d09f321c",
    "signer": "0x79e9a23B839E97A6a53F024E999714242bAb4572",
    "userId": "294750621"
  }
}