{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "369575",
    "entityType": "User",
    "nonce": "0xd5840c0dade0e90762ef60d66e3d9a90a18ffdfe73f87ed03dd7620e7373f532",
    "signature": "0xb3c5fdca5e05049529aae9b5364ec6785616058cb359f7c553d994482938497336822a94b6abac24a3343b43ff1cd520d3ea5aa96931776fa261e034a8f258521c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}