{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3dfb8345256c2bcef05dc24d0b3cfeca30f4eb376e7c92ef4b0f174c806070b6",
    "signature": "0x216daa5b00d3d2ba545d0f0f11311eb54588746f47f23382ff715ef833a40126155dbea18a9753711fc14f1af2666dcb432e4bce15a47871456844b03cecd7ee1c",
    "signer": "0x5C07E6dEF1CE3e13F69d1F6cE24aaFA2871bb130",
    "userId": "547554416"
  }
}