{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344861033",
    "entityType": "User",
    "nonce": "0x45bc5c1683a582e614ea97c45e1145faf344d0897d78b246494f3c44afa1077a",
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    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}