{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "336232",
    "entityType": "User",
    "nonce": "0x5a0964e4ac268341d98665628880b8303143a3d5cb54c8c4ffcdfdbd343ba9d5",
    "signature": "0x0aa712f2b0048230f82696596ea12df85be154ac0d2c6321ad71badad451eeb0366cb1176872af009c28dd5381d17255d0c9429d4cce55c8b628a4023cb118cf1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}