{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121616299",
    "entityType": "User",
    "nonce": "0xac5aa2acce73c6164ed7569b82ebc072a8e4150ab7d442302adf3d4c824247b1",
    "signature": "0x9b975a45bd1e87f0081e1e8b3a874f31a60bc27a9867a06898ac87821618267f09676e2480e8ca0fbefced2c47dee3aa6c0fc7f09596dbf8d49470bf097640f11c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}