{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104757",
    "entityType": "User",
    "nonce": "0xa015843586b2206d43aaeef16bb13fd60e5b727de8a71531ab39e8c16874775f",
    "signature": "0x6be2bde69183c7af6762062fb1f8aaea133ed0776bcd9e848cd7e5e54eef108c0f8f29efcfe32da022864c4c6db14e2f6b5abb83d8b0426a0985ba2b509b22a21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}