{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdaea6850d8475e075d614467bc854149ffd3214f6c9444d27be052b59e03c9ca",
    "signature": "0x07893a665b806d59ae4da7d272674f5c533ea582573292f6d1f92ba363657ed22603e05adfc0a050b829af323fba885ad406cfff1d2c55041963ed50dafa66d51c",
    "signer": "0xe2c88842b0566d0d863E8147E7BE6EA260224Bc2",
    "userId": "107422769"
  }
}