{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370468",
    "entityType": "User",
    "nonce": "0x332af315c5b6da8e42f12a19bc7184f506e14121fb68b5837dd180d669c6e208",
    "signature": "0x96b767ca7dce91bfa3daa4250b1227ac97c86430135fa8fde40e4012ed05336a37f6d9f70afd3d6e6edaac1c32ca4b83105f736e04c6f3264ea4abc3b45a163a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}