{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x137a845377d78868dc2e18f6fbfe8392a45308508ffb5a61fb3be081466e10f7",
    "signature": "0x8edd0d568e9b310b87bb5d4c48abb360e5da4c0ef1a47b10aae799599b51f6393f625d543b21aa4a9a3bd05b93015bfafd8d0eb9faaa5b3560f110bbe1fcf4981c",
    "signer": "0x4d6701aee41cF386F0f1Dc360F47F200983c6c62",
    "userId": "454478631"
  }
}