{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "470730",
    "entityType": "User",
    "nonce": "0x45f8211f360ec183b7fa2656642e27c865919442fdab930d61401a6e3e1c25cd",
    "signature": "0x293e1b490885e8e440ed121b9cd32004a91846788442bb5db4a85bc7138741d2321b25ecbf1c543122651fd58a59abfc7329ec04414d60f5dfa68bf848b65a971c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}