{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8943ef2ea49247605355e660f3ad537c74651a37834db7f1a0cfb63c31f8c319",
    "signature": "0x4cc0f5fe26070dfe35593b7a1bec4ab324e17955ca198f2f09d951ecc4ffd8ef7fb2d76e28f5ea02e95868d0e41262e4069497d3cb1f83e3ef4dd92d8bde35811c",
    "signer": "0x82C90dFd501728BE9e16390CE63153Cb71a4c2a5",
    "userId": "266133277"
  }
}