{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155986",
    "entityType": "User",
    "nonce": "0x4b906994a01823d65c64339cc640a9581442784f10ddd8f8d1b5a5f4aac14350",
    "signature": "0xd9f0f5ec8736f1067eb552265299a0fe7f74c2003f6405c532fb8fa792b9f3a22db398a30f9625585814b663621b254f711821432b3cee96e7a0a925676c96081c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}