{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370091516",
    "entityType": "User",
    "nonce": "0x13a93620352e78beb7984c2c4c3c4010d3c087264bb527850a96d2becfe9524e",
    "signature": "0x22917dd946d83f6e40d57c9f6ec5ba35c2d6eb7e646a1cc32ec25a242cfc63e27ca16323b30b45c5614b6f4ceade1030bafd253a6187de070432471caf4e437d1c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}