{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x1dc8d39f4ec49040ea9e3d56f5e2406ce7ecab8e4d7490c5682d80fc3d4d45e3",
    "signature": "0x3fed864b1dd06e860a0cc83df0be1ff42ba159f8f6ee334236b1ad584c167a5c3863cbccb08c98228d4c810a38ba3f5e4ce6808c97e88c5fc82c144ea71594ac1b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}