{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcb3fab255730307ea02282da000ebb60e62a4984fe907be83323edd61a646173",
    "signature": "0xf32d8c95c26a47b081239ebe51013aa92028ae38f17fa9c57c10e773172bc3d64a8dd25d3e14e8f364b2339daa8bc6c19f93e7d1ec8531a5eba166cdae618a791b",
    "signer": "0x51a3896095A18b62c0162c171a8a67a2B3189b2b",
    "userId": "230584579"
  }
}