{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa585ea54d81c690a8967aa25e7661c0ea83861bb9644d931c814384cd5bebf57",
    "signature": "0x642a0cbebeea47f9c5ef782326037c3009298f3cc26856e574c9b739ca483e2275150a980c19642241da98467993c625c153415991bb85ac460f34e09914723e1c",
    "signer": "0x6ae0a1f023b73E850eE299ac57e547c85793081F",
    "userId": "994837043"
  }
}