{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0caea79b061770f8215470cb4d1cefd7f68480464221d6ee56625893098dfc9f",
    "signature": "0x7d70c90aa6b443c8b88a25bd849370fb2f30dff19295ebac34bac5c8c1a023a5085ba5fbd44d752570e24fef54e7c5798cf7176f264cd4cff04b30d9d13d568e1b",
    "signer": "0x1d62e42809e870aA852d9Ae62626c0320a12c2Bf",
    "userId": "357831760"
  }
}