{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134527",
    "entityType": "User",
    "nonce": "0x29c762ca1360ef0d01108511a3878a572928956b08d505981de7ca3aa5048474",
    "signature": "0x0ab3ab386ca0fee469136f1d8116b39f035dd56fa6cbcf8a2bf62261ba1450606c0d9444335d2f5573801ad099b970c77179d1559d611a449645b1d9f09ab9501b",
    "signer": "0x8739aB96B52ccc56d0E5226Ff69659162d4269A9",
    "userId": "320952162"
  }
}