{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945818227",
    "entityType": "User",
    "nonce": "0x0dfd11507d7f54e2a1ba38fcfc793d07d68a332fcacc1e90f3b0b7590a08b362",
    "signature": "0x68c312f9f50574a336768b264ec3ffbfeae28a3fd2c5ad067c9c35bddcef44813e1cd11bd5855e11505b0dc714563f6a7a1d4f7c191cd3b2125639e5c06b531b1c",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}